DOWNLOAD Panasonic CS-TZ20TKEW / CS-TZ25TKEW / CS-TZ35TKEW / CS-TZ42TKEW / CS-MTZ16TKE / CU-TZ20TKE / CU-TZ25TKE / CU-TZ35TKE / CU-TZ42TKE Service Manual ↓ Size: 23.23 MB | Pages: 127 in PDF or view online for FREE

Model
CS-TZ20TKEW CS-TZ25TKEW CS-TZ35TKEW CS-TZ42TKEW CS-MTZ16TKE CU-TZ20TKE CU-TZ25TKE CU-TZ35TKE CU-TZ42TKE
Pages
127
Size
23.23 MB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner / AIR CONDITIONER
File
cs-tz20tkew-cs-tz25tkew-cs-tz35tkew-cs-tz42tkew-cs.pdf
Date
PREV: Panasonic CS-BE25TKE / CU-BE25TKE / CS-BE35TKE / CU-BE35TKE / CS-BE50TKE / CU-BE50TKE / CS-TE20TKEW / CU-TE20TKE / CS-TE25TKEW / CU-TE25TKE / CS-TE35TKEW / CU-E35TKE / CS-TE42TKEW / CU-TE42TKE / CS-TZ20TKEW / CU-TZ20TKE / CS-TZ25TKEW / CU-TZ25TKE / CS-TZ35TKEW / CU-TZ35TKE / CS-TZ42TKEW / CU-TZ42TKE / CS-TZ50TKEW / CU-TZ50TKE Service Manual / Supplement

Panasonic CS-TZ20TKEW / CS-TZ25TKEW / CS-TZ35TKEW / CS-TZ42TKEW / CS-MTZ16TKE / CU-TZ20TKE / CU-TZ25TKE / CU-TZ35TKE / CU-TZ42TKE Service Manual ▷ View online

117 
18.4.20  F17 (Indoor Standby Units Freezing Abnormality) 
Malfunction Decision Conditions 
  When the different between indoor intake air temperature and indoor pipe temperature is above 10°C or indoor 
pipe temperature is below -1.0°C. 
 
Remark: 
When the indoor standby unit is freezing, the outdoor unit transfers F17 error code to the corresponding indoor 
unit and H39 to other indoor unit(s). 
 
Malfunction Caused 
  Wrong wiring connection 
 Faulty 
sensor 
  Faulty expansion valve 
 
Troubleshooting 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
118 
18.4.21    F90 (Power Factor Correction Protection) 
Malfunction Decision Conditions 
  To maintain DC voltage level supply to power transistor. 
  To detect high DC voltage level after rectification. 
 
Malfunction Caused 
  During startup and operation of cooling and heating, when Power Factor Correction (PFC) protection circuitry at 
the outdoor unit main PCB senses abnormal DC voltage level for power transistors. 
  When DC voltage detected is LOW, transistor switching will turn ON by controller to push-up the DC level. 
  When DC voltage detected is HIGH (391Vdc – 425Vdc), active LOW signal will send by the controller to turn OFF 
relay RY-C. 
 
Troubleshooting 
 
 
 
 
 
 
119 
18.4.22    F91 (Refrigeration Cycle Abnormality) 
Malfunction Decision Conditions 
  The input current is low while the compressor is running at higher than the setting frequency. 
 
Malfunction Caused 
  Lack of gas. 
  3-way valve close. 
 
Troubleshooting 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
120 
18.4.23    F93 (Compressor Rotation Failure) 
Malfunction Decision Conditions 
  A compressor rotation failure is detected by checking the compressor running condition through the position 
detection circuit. 
 
Malfunction Caused 
  Compressor terminal disconnect 
  Faulty Outdoor PCB 
 Faulty 
compressor 
 
Troubleshooting 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Page of 127
Display

Click on the first or last page to see other CS-TZ20TKEW / CS-TZ25TKEW / CS-TZ35TKEW / CS-TZ42TKEW / CS-MTZ16TKE / CU-TZ20TKE / CU-TZ25TKE / CU-TZ35TKE / CU-TZ42TKE service manuals if exist.

RANDOM: