Service and Parts Manual (2019, 2020, 2021, 2022)
Table Of Contents
- INTRODUCTION
- SPECIFICATIONS
- INSTALLATION
- MAINTENANCE
- R-410A SEALED SYSTEM REPAIR
- TROUBLESHOOTING
- Diagnostic Codes
- Outdoor Unit
- Outdoor Unit When The Compressor Is In Operation
- Indoor Unit
- Led Display
- Test the jumper terminals
- Protection Circuit Fault Isolation
- Compressor Fault Isolation
- Electric FIlter Board Fault Isolation
- Electrical Communication Fault ISOLATION
- Unit does not run
- Error Code 39-DC FAN
- Error Code 39-PG Fan
- Error Code 9
- Error Code 13
- Error Code 8
- Error Code 15
- Error Code 16 Cooling Mode
- Error Code 16 Heating Mode
- Error Code 21 Cooling Mode
- Error Code 11 EEPROM Fault
- Error Code 20
- Error Code 33
- Error Code 34
- Error Code 14
- Error Code 1
- Error Code 2
- Error Code 6
- COMPONENTS TESTING
- WIRING DIAGRAMS
- PARTS CATALOG
- Introduction
- 115V Indoor Unit 9-12K
- 230V Indoor Unit 9-12K
- 230V Indoor Unit High Seer 9K
- 230V Indoor Unit High Seer12K
- 230V Indoor Unit 18K
- 230V Indoor Unit 24K
- 230V Indoor Unit 36k
- 115V Outdoor Unit 9K
- 115V Outdoor Unit 12K
- 230V Outdoor Unit 9k
- 230V Outdoor Unit 12k
- 230V Outdoor Unit 18k
- 230V Outdoor Unit 18k
- 230V Outdoor Unit 24k
- Outdoor Unit 36k
- 230v Outdoor Unit 9K HIGH SEER
- 230V Outdoor Unit 12K HIGH SEER
- APPENDIX
- LIMITED WARRANTY
- CUSTOMER SATISFACTION and QUALITY ASSURANCE
- FRIEDRICH AUTHORIZED PARTS DEPOTS
72 PB
COMPONENTS TESTING
EEV Stepper Coil
Discharge pipe temperature is too high. This means the compressor is over heating and will shut down and lock itself out. The
cause for this issue is lack of refrigerant coming back to the compressor to cool the compressor. The main causes of this would be
low charge, restriction or issue with the electronic expansion valve (EEV).
Check Resistence of EEV stepper coil.
Using an ohmmeter check all wires against each other.
5 wire EEV
Red to all colors is 45 +/‑ 10%
All other colors to each other are 95 +/‑ 10%
Remove the head off the EEV (pulls right off) & check for any rust build up. If there is any rust inside the EEV head, replace the EEV
head. If there is rust on the EEV body you can clean it up with some emery cloth.