Panasonic CS-ME10DD3EG / CS-ME10DTEG / CS-E15DB4EW / CS-ME7DKDG / CS-E9DKDW / CS-E12DKDW / CS-E15DKDW / CS-E18DKDW / CS-E15DD3EW / CS-E18DD3EW / CS-E15DTEW / CS-E18DTEW / CS-E18DB4EW Simplified Service Manual ▷ View online
10.2. Error Code
Symbol
Diagnosis
Diagnosis method
H11
Indoor / Outdoor
abnormal
communication
abnormal
communication
This trouble display appears when indoor/outdoor unit communication fails to be established after 30 seconds or
more.
<Diagnosis checkpoint>
1.
more.
<Diagnosis checkpoint>
1.
Measure the voltage of the indoor/outdoor unit communication cables, and check whether the voltage is being
supplied properly to the outdoor unit or whether it is being returned from the outdoor unit to the indoor units.
supplied properly to the outdoor unit or whether it is being returned from the outdoor unit to the indoor units.
H12
Indoor unit capacity
unmatched
unmatched
This trouble display appears when wrong in the total connection capacity and wrong connection in each capacity.
The trouble is determined within 2 minutes after the power is turned on.
<Diagnosis checkpoint>
1.
The trouble is determined within 2 minutes after the power is turned on.
<Diagnosis checkpoint>
1.
Check the total capacity of the units connected and check that the models are compatible for connection.
H14
Intake air temp.
sensor
sensor
This trouble display appears when the intake air temperature has exceeded above 46°C continuously for 2
minutes or dropped below -54°C continuously for 5 seconds during operation.
<Diagnosis checkpoint>
1.
minutes or dropped below -54°C continuously for 5 seconds during operation.
<Diagnosis checkpoint>
1.
This trouble display appears when a temperature which is impossibly high or low from a normal standpoint
has been detected.
has been detected.
Check the sensor, and if open-circulating (more than 500k ohms) or short-circulating (less than 6.5k ohms)
is not found, defective contact of the connector is to blame.
is not found, defective contact of the connector is to blame.
H16
Outdoor Current
Transformer
Transformer
When the total current has dropped below the set current level continuously for 20 seconds during operation
beyond the set capacity, operation is stopped. Three minutes later, operation is started up again, and when the
trouble occurs on 4 successive occasions, the trouble display appears (the timer lamp blinks).
<Diagnosis checkpoint>
1.
beyond the set capacity, operation is stopped. Three minutes later, operation is started up again, and when the
trouble occurs on 4 successive occasions, the trouble display appears (the timer lamp blinks).
<Diagnosis checkpoint>
1.
Check the refrigerating cycle: Gas may be leaking (the amount of refrigerant is extremely low).
2.
Check the control P.C. Board: Check for a broken wire (open-circuited) in the current transformer. (If the
open-circuited is found, replace the control P.C. Board.)
open-circuited is found, replace the control P.C. Board.)
In the case of a scroll compressor (DC motor), H16 is detected only when the regular compressor is
operating.
operating.
H19
Indoor fan motor
mechanism lock
mechanism lock
•
•
•
•
High-voltage PWM: When a state in which the fan motor speed is not synchronized with the control signal has
been detected on 7 successive occasions:
been detected on 7 successive occasions:
•
•
•
•
Low-voltage PAM: When the fan lock detection signal has been detected on 7 successive occasions or it has
been detected continuously for 25 seconds or when a state in which the fan motor speed is not synchronized
with the control signal has been detected on 7 successive occasions:
been detected continuously for 25 seconds or when a state in which the fan motor speed is not synchronized
with the control signal has been detected on 7 successive occasions:
The trouble display appears (the timer lamp blinks).
<Diagnosis checkpoint>
1.
1.
Check the nature of the fan lockup trouble.
2.
Check for disconnections of the fan motor connectors and for defects in contact, in the fan motor and in the
control P.C. Board.
control P.C. Board.
H21
Indoor float switch
abnormality
abnormality
Error appears when the float switch is open for 150 seconds.
<Diagnosis checkpoint>
1.
<Diagnosis checkpoint>
1.
Drain blockage
2.
Check the conductivity of float switch.
3.
Check that the resistance of the drain motor is about 200 ohms.
H23
Indoor heat exchanger
temp. sensor
temp. sensor
This trouble display appears when a temperature of under approximately -40°C or above approximately 80°C has
been detected by the heat exchanger temperature sensor continuously for 5 seconds.
(This trouble is not detected during de-icing.)
<Diagnosis checkpoint>
1.
been detected by the heat exchanger temperature sensor continuously for 5 seconds.
(This trouble is not detected during de-icing.)
<Diagnosis checkpoint>
1.
This trouble display appears when a temperature which is impossibly high or low from a normal standpoint
has been detected.
has been detected.
Check the sensor, and if open-circuiting (more than 500k ohms) or short-circuiting (less than 2.5k ohms) is
not found, defective contact of the connector or a defective control P.C. Board is to blame.
not found, defective contact of the connector or a defective control P.C. Board is to blame.
H27
Outdoor air temp.
sensor
sensor
This trouble display appears when a temperature of under approximately -40°C or above approximately 150°C
has been detected by the outdoor air temperature sensor for 2 to 5 seconds. (This trouble is not detected during
de-icing.)
<Diagnosis checkpoint>
1.
has been detected by the outdoor air temperature sensor for 2 to 5 seconds. (This trouble is not detected during
de-icing.)
<Diagnosis checkpoint>
1.
This trouble display appears when a temperature which is impossibly high or low from a normal standpoint
has been detected.
has been detected.
Check the sensor, and if open-circuiting (more than 500k ohms) or short-circuiting (less than 0.5k ohms) is
not found, defective contact of the connector or a defective control P.C. Board is to blame.
not found, defective contact of the connector or a defective control P.C. Board is to blame.
H28
Outdoor heat
exchanger temp.
sensor 1
exchanger temp.
sensor 1
This trouble display appears when a temperature of under approximately -60°C or above approximately 110°C
has been detected by the heat exchanger temperature sensor for 2 to 5 seconds. (This trouble is not detected
during de-icing.)
<Diagnosis checkpoint>
1.
has been detected by the heat exchanger temperature sensor for 2 to 5 seconds. (This trouble is not detected
during de-icing.)
<Diagnosis checkpoint>
1.
This trouble display appears when a temperature which is impossibly high or low from a normal standpoint
has been detected.
has been detected.
Check the sensor, and if open-circuiting (more than 500k ohms) or short-circuiting (less than 0.5k ohms) is
not found, defective contact of the connector or a defective control P.C. Board is to blame.
not found, defective contact of the connector or a defective control P.C. Board is to blame.
89
CS-ME7DKEG CS-ME10DD3EG / CS-ME10DTEG CS-E15DB4EW
Symbol
Diagnosis
Diagnosis method
H30
Outdoor discharge
pipe temp. sensor
pipe temp. sensor
Disconnected discharge sensor
•
•
•
•
When the condition temperature is higher than the discharge temperature + (plus) 6°C, a sensor
disconnection is detected, operation stops, and the trouble display appears (the timer lamp blinks).
disconnection is detected, operation stops, and the trouble display appears (the timer lamp blinks).
<Diagnosis checkpoint>
1.
1.
This trouble display appears when a temperature which is impossibly high or low from a normal standpoint
has been detected.
has been detected.
Check the sensor, and if open-circuiting (more than 500k ohms) or short-circuiting (less than 0.5k ohms) is
not found, defective contact of the connector or a defective control P.C. Board is to blame.
not found, defective contact of the connector or a defective control P.C. Board is to blame.
H32
Outdoor heat
exchanger temp.
sensor 2
(discharge pipe temp.)
exchanger temp.
sensor 2
(discharge pipe temp.)
This trouble display appears when a temperature of under approximately -60°C or over approximately 110°C has
been detected continuously for 2 to 5 seconds by the outlet temperature sensor of the heat exchanger.
<Diagnosis checkpoint>
1.
been detected continuously for 2 to 5 seconds by the outlet temperature sensor of the heat exchanger.
<Diagnosis checkpoint>
1.
This trouble display appears when a temperature which is impossibly high or low from a normal standpoint
has been detected.
has been detected.
Check the sensor, and if open-circuiting (more than 500k ohms) or short-circuiting (less than 0.5k ohms) is
not found, defective contact of the connector or a defective control P.C. Board is to blame.
not found, defective contact of the connector or a defective control P.C. Board is to blame.
H34
Outdoor heatsink
temp. sensor
temp. sensor
This trouble display appears when a temperature of under -43°C or above 80°C has been detected by the outdoor
unit radiator fin sensor continuously for 2 seconds.
<Diagnosis checkpoint>
1.
unit radiator fin sensor continuously for 2 seconds.
<Diagnosis checkpoint>
1.
This trouble display appears when a temperature which is impossibly high or low from a normal standpoint
has been detected.
has been detected.
Check the sensor, and if open-circuiting (more than 500k ohms) or short-circuiting (less than 0.5k ohms) is
not found, defective contact of the connector or a defective control P.C. Board is to blame.
not found, defective contact of the connector or a defective control P.C. Board is to blame.
H35
Drainage or drain
pump abnormality
pump abnormality
This error appears if the float switch is open three rimes for 10 seconds or more during a twenty-minute period.
<Diagnosis checkpoint>
1.
<Diagnosis checkpoint>
1.
Drain blockage
2.
Check the conductivity of float switch.
3.
Check that the resistance of the drain motor is about 200 ohms.
H36
Outdoor gas pipe
temp. sensor
temp. sensor
This trouble display appears when a temperature of under -45°C or above approximately 149°C has been
detected by the outdoor unit gas side pipe temperature sensor continuously for 2 to 5 seconds.
<Diagnosis checkpoint>
1.
detected by the outdoor unit gas side pipe temperature sensor continuously for 2 to 5 seconds.
<Diagnosis checkpoint>
1.
This trouble display appears when a temperature which is impossibly high or low from a normal standpoint
has been detected.
has been detected.
Check the sensor, and if open-circuiting (more than 500k ohms) or short-circuiting (less than 0.5k ohms) is
not found, defective contact of the connector or a defective control P.C. Board is to blame.
not found, defective contact of the connector or a defective control P.C. Board is to blame.
H37
Outdoor liquid pipe
temp. sensor
temp. sensor
This trouble display appears when a temperature of under -45°C or above 149°C has been detected by the
outdoor unit liquid side pipe temperature sensor continuously for 2 seconds.
<Diagnosis checkpoint>
1.
outdoor unit liquid side pipe temperature sensor continuously for 2 seconds.
<Diagnosis checkpoint>
1.
This trouble display appears when a temperature which is impossibly high or low from a normal standpoint
has been detected.
has been detected.
Check the sensor, and if open-circuiting (more than 500k ohms) or short-circuiting (less than 0.5k ohms) is
not found, defective contact of the connector or a defective control P.C. Board is to blame.
not found, defective contact of the connector or a defective control P.C. Board is to blame.
H39
Abnormal indoor
operating unit or
standby units
operating unit or
standby units
This display appears in rooms other than one in which indoor freezing trouble has occurred when the pipes have
been connected incorrectly, when an outdoor expansion valve is defective or when an expansion valve connector
has become disconnected.
been connected incorrectly, when an outdoor expansion valve is defective or when an expansion valve connector
has become disconnected.
H41
Abnormal wiring or
piping connection
piping connection
CU-2E only
This display appears when this kind of trouble is detected 3 minutes after a forced cooing operation was
conducted for one room during the initial operation after the power was turned on. It appears when:
This display appears when this kind of trouble is detected 3 minutes after a forced cooing operation was
conducted for one room during the initial operation after the power was turned on. It appears when:
•
•
•
•
The indoor unit pipe temperature in a room without the capacity supply available at an outside air temperature
above 5°C has dropped by more than 20°C to 5°C or lower 3 minutes after the compressor started up.
above 5°C has dropped by more than 20°C to 5°C or lower 3 minutes after the compressor started up.
•
•
•
•
The outdoor unit gas pipe temperature in a room without the capacity supply available has dropped by more
than 5°C to 5°C or lower 3 minutes after the compressor started up.
than 5°C to 5°C or lower 3 minutes after the compressor started up.
H97
Outdoor fan motor
mechanism lock
mechanism lock
When the fan motor speed detected when its maximum output is demanded is below 30 rpm. continuously for 15
seconds, the fan motor stops for 3 minutes and then restarted.
When this happens on 16 occasions (the trouble display is cleared when the value is normal for 5 minutes), the
H97 diagnostic symbol is stored in the memory, and the fan motor stops.
<Diagnosis checkpoint>
1.
seconds, the fan motor stops for 3 minutes and then restarted.
When this happens on 16 occasions (the trouble display is cleared when the value is normal for 5 minutes), the
H97 diagnostic symbol is stored in the memory, and the fan motor stops.
<Diagnosis checkpoint>
1.
Check the nature of the fan lockup trouble.
2.
Check for disconnections of the fan motor connectors and for defects in contact, in the fan motor and in the
control P.C. Board.
control P.C. Board.
H98
Indoor high pressure
protection
protection
The restriction on the compressor frequency is started when the temperature of the indoor unit heat exchanger
source is between 50°C and 52°C, the compressor stops at a temperature from 62°C to 65°C, it is restarted 3
minutes later at below 62°C to 65°C, and the restriction on the compressor frequency is released at a temperature
between 48°C and 50°C. (No trouble display appears.)
<Diagnosis checkpoint>
1.
source is between 50°C and 52°C, the compressor stops at a temperature from 62°C to 65°C, it is restarted 3
minutes later at below 62°C to 65°C, and the restriction on the compressor frequency is released at a temperature
between 48°C and 50°C. (No trouble display appears.)
<Diagnosis checkpoint>
1.
Check the indoor unit heat exchanger temperature sensor (check for changes in its characteristics and check
its resistance): Symptoms include no hot start when operation is started, a failure of the thermostat to turn on
(no outdoor unit operation). And, frequent repetition of stopping and startup.
its resistance): Symptoms include no hot start when operation is started, a failure of the thermostat to turn on
(no outdoor unit operation). And, frequent repetition of stopping and startup.
2.
Check also for short-circuits indoors and clogging of the air filters.
90
CS-ME7DKEG CS-ME10DD3EG / CS-ME10DTEG CS-E15DB4EW
Symbol
Diagnosis
Diagnosis method
H99
Indoor operating unit
freezing
freezing
The restriction on the compressor frequency is started when the indoor unit heat exchanger temperature is
between 8°C and 12°C. Operation stops if a temperature below 0°C continues for 6 minutes. Three minutes later,
operation is started up at a temperature from 3°C to 8°C. The restriction on the compressor frequency is released
at a temperature between 13°C and 14°C.
<Diagnosis checkpoint>
1.
between 8°C and 12°C. Operation stops if a temperature below 0°C continues for 6 minutes. Three minutes later,
operation is started up at a temperature from 3°C to 8°C. The restriction on the compressor frequency is released
at a temperature between 13°C and 14°C.
<Diagnosis checkpoint>
1.
A cooling or dry mode operation conducted at a low outside air temperature is mainly to blame: this
is not indicative of any malfunctioning.
is not indicative of any malfunctioning.
If the outdoor air temperature rises during automatic operation in the winter months, the dry mode
operation is selected. The H99 diagnostic display also appears at such a time.
operation is selected. The H99 diagnostic display also appears at such a time.
2.
Check the refrigerating cycle: Gas may be leaking (the amount of refrigerant is low) or a pipe may be broken,
etc.
etc.
3.
Check also for short-circuits indoors and clogging of the air filters.
F11
4-way valve switching
failure
failure
When a difference of 0°C to 5°C has been detected between the outdoor unit heat exchanger temperature and
liquid side pipe temperature on 5 occasions, the trouble display appears.
<Diagnosis checkpoint>
1.
liquid side pipe temperature on 5 occasions, the trouble display appears.
<Diagnosis checkpoint>
1.
Check the 4-way valve coil: Check that no power is supplied to the coil during cooling and dry mode
operations, and that power is supplied during heating operation. Inspect the coil for broken wires (open-
circuiting).
operations, and that power is supplied during heating operation. Inspect the coil for broken wires (open-
circuiting).
2.
If the coil trouble-free, the switching action of the 4-way valve may be defective.
F17
Indoor standby units
freezing
freezing
When the difference of an intake temperature (room temperature sensor) and the indoor unit heat exchanger
temperature (piping sensor) is higher than 10°C or an indoor unit heat exchanger temperature of below -1°C has
been detected continuously for 5 minutes, operation stops. Three minutes later, it is started up, and the trouble
display appears when this has occurred on 3 consecutive occasions.
<Diagnosis checkpoint>
1.
temperature (piping sensor) is higher than 10°C or an indoor unit heat exchanger temperature of below -1°C has
been detected continuously for 5 minutes, operation stops. Three minutes later, it is started up, and the trouble
display appears when this has occurred on 3 consecutive occasions.
<Diagnosis checkpoint>
1.
Check the refrigerating cycle: Expansion valve leakage
2.
Check the indoor unit pipe temperature sensor. (Check for changes in its characteristics and check its
resiastance.)
resiastance.)
F90
PFC circuit protection When a DC voltage over 393V to 424V has been detected on 16 occasions, this trouble display appears.
<Diagnosis checkpoint>
1.
1.
To check whether the shutting valve has been left close by mistake, operation is performed for one to several
minutes after the compressor has started up, F93 is stored in the memory as the symptom, and operation
stops.
minutes after the compressor has started up, F93 is stored in the memory as the symptom, and operation
stops.
2.
Check the inverter circuit (for open-circuiting) in the control P.C. Board: Check the IPM base current (6
locations) within 3 minutes after the power has been turned back on. As the symptom, F93 is stored in the
memory 30 seconds after the compressor has started up, and operation stops. The trouble display appears
after 4 restarts.
locations) within 3 minutes after the power has been turned back on. As the symptom, F93 is stored in the
memory 30 seconds after the compressor has started up, and operation stops. The trouble display appears
after 4 restarts.
3.
Check for broken wires (for open-circuiting) in the compressor winding: Approximately 1 ohm under normal
conditions for each phase (same symptom as in 2.)
conditions for each phase (same symptom as in 2.)
4.
Check the power supply voltage has been fluctuating or not.
F91
Refrigeration cycle
abnormality
abnormality
When the compressor frequency is above 55 Hz and the current drops below the prescribed level continuously
for 7 minutes, operation stops, and it is restarted 3 minutes later.
When the compressor discharge temperature has exceeded the setting and the expansion valve has remained
fully open for 80 seconds, operation stops, and it is restarted 3 minutes later.
When the stopping described above has occurred on 4 occasions, operation stops, and the trouble display
appears.
<Diagnosis checkpoint>
1.
for 7 minutes, operation stops, and it is restarted 3 minutes later.
When the compressor discharge temperature has exceeded the setting and the expansion valve has remained
fully open for 80 seconds, operation stops, and it is restarted 3 minutes later.
When the stopping described above has occurred on 4 occasions, operation stops, and the trouble display
appears.
<Diagnosis checkpoint>
1.
Check the refrigerating cycle: Gas may be leaking (more than one-half of the volume of the gas has gone).
The diagnosis displays resulting from a gas leak generally change in the following sequence depending on
the extent of the gas leak: H99
The diagnosis displays resulting from a gas leak generally change in the following sequence depending on
the extent of the gas leak: H99
→
F97
→
F91
→
H16.
The range of this trouble (F91) is limited. (Compressor protection at the start of the season)
F93
Compressor abnormal
revolution
revolution
When a state in which the rotation of the compressor is not synchronized with the control signal has been
detected on 8 successive occasions, operation stops, and the trouble display appears.
<Diagnosis checkpoint>
1.
detected on 8 successive occasions, operation stops, and the trouble display appears.
<Diagnosis checkpoint>
1.
To check whether the shutting valve has been left close by mistake, operation is performed for one to several
minutes after the compressor has started up, F93 is stored in the memory as the symptom, and operation
stops.
minutes after the compressor has started up, F93 is stored in the memory as the symptom, and operation
stops.
2.
Check the inverter circuit (for open-circuiting) in the control P.C. Board: Check the IPM base current (6
locations) within 3 minutes after the power has been turned back on. As the symptom, F93 is stored in the
memory 30 seconds after the compressor has started up, and operation stops. The trouble display appears
after 4 restarts.
locations) within 3 minutes after the power has been turned back on. As the symptom, F93 is stored in the
memory 30 seconds after the compressor has started up, and operation stops. The trouble display appears
after 4 restarts.
3.
Check for broken wires (open-circuiting) in the compressor winding: Approximately 1 ohm under normal
conditions for each phase (same symptom as in 2.)
conditions for each phase (same symptom as in 2.)
F95
Outdoor high pressure
protection
protection
CU-2E only
When the temperature of the outdoor unit heat exchanger temperature sensor exceeds 62°C, the F95 diagnostic
symbol is stored in the memory, and operation stops. Thirteen minutes later, operation is restarted at a
temperature below 48°C. This trouble display appears when this happens on 4 occasions in a 20-minute period.
<Diagnosis checkpoint>
1.
When the temperature of the outdoor unit heat exchanger temperature sensor exceeds 62°C, the F95 diagnostic
symbol is stored in the memory, and operation stops. Thirteen minutes later, operation is restarted at a
temperature below 48°C. This trouble display appears when this happens on 4 occasions in a 20-minute period.
<Diagnosis checkpoint>
1.
Check the indoor unit pipe temperature sensor. (Check for changes in its characteristics and check its
resiastance.)
resiastance.)
2.
Check whether something is interfering with the dissipation of the heat outdoors.
91
CS-ME7DKEG CS-ME10DD3EG / CS-ME10DTEG CS-E15DB4EW
Symbol
Diagnosis
Diagnosis method
F96
IPM (Power transistor
module) or
compressor
overheating
module) or
compressor
overheating
When this trouble is detected from the electrical parts radiation fin temperature sensor and OLP output during
operation, operation stops, and it is restarted 3 minutes later. If the trouble occurs on 4 occasions, operation
stops, and the trouble display appears.
<Diagnosis checkpoint>
1.
operation, operation stops, and it is restarted 3 minutes later. If the trouble occurs on 4 occasions, operation
stops, and the trouble display appears.
<Diagnosis checkpoint>
1.
Something may be interfering with the dissipation of the heat outdoors or the outdoor unit fan may be
defective. (The outdoor unit fan is not running.)
defective. (The outdoor unit fan is not running.)
2.
Defective IPM (Outdoor unit control P.C. Board)
3.
Gas leaks. Shutting valve is not opened.
F97
Compressor high
discharge temperature
discharge temperature
This trouble display appears and operation stops when this happens on 6 occasions (it is cleared when the
operation is normal for 20 minutes).
<Diagnosis checkpoint>
1.
operation is normal for 20 minutes).
<Diagnosis checkpoint>
1.
Check the refrigerating cycle: Gas may be leaking (The amount of refrigerant is low). The stopping of the
outdoor unit from time to time is a symptom of this trouble.
outdoor unit from time to time is a symptom of this trouble.
2. When operation steps with this trouble display appearing, check the compressor temperature sensor. (Check
for changes in its characteristics and check its resistance.)
3.
Something may be interfering with the dissipation of the heat outdoors or the outdoor unit fan may be
defective. (The fan will not run because of open-circuiting.)
defective. (The fan will not run because of open-circuiting.)
(The protection may be activated by an overload, and the F97 trouble display will remain stored in the
memory.)
memory.)
F98
Total running current
protection
protection
When the total current exceeds the setting (17A to 20A), frequency control is started, and if it then exceeds the
setting, operation stops, and the trouble display appears.
<Diagnosis checkpoint>
1.
setting, operation stops, and the trouble display appears.
<Diagnosis checkpoint>
1.
Check the AC voltage at the outdoor unit terminal board during operation: The voltage drop must be within
5% of the voltage when operation has stopped (±110% of rated voltage even during operation). If the voltage
drop exceeds 5% of if the voltage changes suddenly, inspect whether the power supply cord and
indoor/outdoor unit connection cables are too long or too small in diameter, etc.
5% of the voltage when operation has stopped (±110% of rated voltage even during operation). If the voltage
drop exceeds 5% of if the voltage changes suddenly, inspect whether the power supply cord and
indoor/outdoor unit connection cables are too long or too small in diameter, etc.
2.
Check whether something is interfering with the dissipation of the heat exchanger outdoors (during cooling
operation): Normally, the capacity is limited by the current so that outdoor unit doesn’t stop, and the
diagnostic display does not appear.
operation): Normally, the capacity is limited by the current so that outdoor unit doesn’t stop, and the
diagnostic display does not appear.
F99
DC peak detection
When "Output current trouble", which occurs when the prescribed current level is exceeded, has occurred on 16
consecutive occasions, operation stops, and the trouble display appears.
<Diagnosis checkpoint>
1.
consecutive occasions, operation stops, and the trouble display appears.
<Diagnosis checkpoint>
1.
Check whether the compressor is defective (locked up or shorted winding). Check the outdoor unit control
P.C. Board.
P.C. Board.
92
CS-ME7DKEG CS-ME10DD3EG / CS-ME10DTEG CS-E15DB4EW
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