Panasonic NN-DS592MZPE Service Manual ▷ View online
11. Remove 2 screws holding thermistor on heater DU.
12. Remove 4 screws holding heater DU on the bottom of oven
assy.
To install heater DU
To install heater DU
NOTE:
1.Spread silicon grease evenly between the face
of heater DU and bottom of oven cavity. (about
0.3mm thickness), this is for good conductibility.
2.Tighten 4 screws and make sure there is no
gap between heater DU and bottom of oven
cavity.
(NOTE: Please tighten mounting screws properly
in an X pattern.)
3.Do not forget to screw the thermal cutout
bracket along with heater DU.
of heater DU and bottom of oven cavity. (about
0.3mm thickness), this is for good conductibility.
2.Tighten 4 screws and make sure there is no
gap between heater DU and bottom of oven
cavity.
(NOTE: Please tighten mounting screws properly
in an X pattern.)
3.Do not forget to screw the thermal cutout
bracket along with heater DU.
To install thermistor
NOTE:
Before installing thermistor, please fill enough
silicon grease into the installation hole of heater
DU for good conductibility.
silicon grease into the installation hole of heater
DU for good conductibility.
6.10. IR sensor
1. Disconnect connector CN7 from D.P.C. board HU.
2. Remove 1 screw holding IR sensor (U) on right heater
2. Remove 1 screw holding IR sensor (U) on right heater
panel.
To replace swing motor of IR sensor
1. Release the locking lever of connector on swing motor,
then remove drive line.
2. Remove 2 screws holding swing motor on motor
mounting plate.
3. Remove swing motor from IR sensor assy.
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NN-DS592M
6.11. Pump
1. Remove water tank (U) from drip tray.
2. Keep pressing [Steam Defrost] pad for more than 2
2. Keep pressing [Steam Defrost] pad for more than 2
seconds to drain the water remaining in the water pipes and
tubes into oven cavity.
tubes into oven cavity.
3. Pull tube B out from nozzle A.
4. Remove 3 screws holding water tank holder on the base.
5. Disconnect 1 connector from the pump motor.
6. Press both side of water tank holder to release the locking
6. Press both side of water tank holder to release the locking
tabs in direction of arrows, then remove water tank holder.
7. Remove 1 screw fixing the cover of water tank holder.
8. The matching relationship between tank (U), pump motor
and water tank holder are as the illustration below.
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NN-DS592M
To install pump motor
1. Insert pump motor into water tank holder.
2. Make sure that the pump motor is properly aligned after
2. Make sure that the pump motor is properly aligned after
installation.
NOTE:
To prevent tube B from slipping out after repairing,
make sure the insert depth should be proper when
inserting tube B into nozzle A.
make sure the insert depth should be proper when
inserting tube B into nozzle A.
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NN-DS592M
WARNING
1. High voltage is present at the output terminals of the High Voltage
Inverter (U) including aluminum heat sink during any cook cycle.
2. It is neither necessary nor advisable to attempt measurement of the
high voltage.
3. Before touching any oven components, or wiring, always unplug
the power cord and discharge the high voltage capacitors (see page
11).
Inverter (U) including aluminum heat sink during any cook cycle.
2. It is neither necessary nor advisable to attempt measurement of the
high voltage.
3. Before touching any oven components, or wiring, always unplug
the power cord and discharge the high voltage capacitors (see page
11).
7.1. Primary, Secondary Latch
Switch interlocks & Power
Relay RY1
Relay RY1
1. Unplug lead connectors to Power Relay RY1 and verify
open circuit of the Power Relay RY1 (1-2) terminals.
2. Unplug lead connectors to Primary Latch Switch and Door
Switch.
3. Test the continuity of switches at door opened and closed
positions with ohm meter (low scale).
Normal continuity readings should be as follows.
Normal continuity readings should be as follows.
Door Closed
Door Opened
Primary Latch Switch
0
Ω (Close)
Ω(Open)
Door Switch
0
Ω (Close)
Ω(Open)
Power Relay B
Ω (Open)
Ω(Open)
7.2. Short Switch
1. Unplug lead wires from Inverter Power Supply (U) primary
terminals.
2. Connect test probes of ohm meter to the disconnected
leads that were connected to Inverter Power Supply (U).
3. Test the continuity of short switch with door opened and
closed positions using lowest scale of the ohm meter.
Normal continuity readings should be as follows.
Normal continuity readings should be as follows.
Door Opened
Door Closed
0
Ω (Close)
Ω(Open)
7.3. Magnetron
Continuity checks can only indicate an open filament or a
shorted magnetron. To diagnose for an open filament or
shorted magnetron.
1. Isolate magnetron from the circuit by disconnecting the
shorted magnetron. To diagnose for an open filament or
shorted magnetron.
1. Isolate magnetron from the circuit by disconnecting the
leads.
2. A continuity check across magnetron filament terminals
should indicate one ohm or less.
3. A continuity check between each filament terminal and
magnetron case should read open.
7 COMPONENT TEST PROCEDURE
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NN-DS592M
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