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
69 PB
TROUBLESHOOTING
Blank Display/ Error Code 36
See Figure 716
Does n wiring
meet specicaons?
14 gauge stranded wiring rated
for 600v
Replace wiring
as required.
Yes
Are there any junc boxes or
splices in the wiring except for
code required disconnects?
No
Replace wiring
as required.
Yes
Is Wiring connected to the
proper terminals?
L, N, S1 are not always
cgured from to right.
No
Correct wiring
connecs.
Yes
Check Line Voltage at indoor
and Outdoor Units for 115 or
230 VAC as required.
Is voltage correct?
Trace back
source of
problem and
correct.
No
Yes
Is condensate pump being
powered from terminal block?
It must have it’s own power
source.
Connect
condensate
pump to its
own power
source.
Yes
Yes
Measure voltage between S1
and N. Is the voltage ng
between 0 and 24 vdc?
No
Replace indoor
or outdoor
control boards
as required.
No
Blank Display / E36 Error
Check the indoor and outdoor
fan motors. See Component
Tes secon. Do motors
check good?
Replace motor
as required
End
See Figure 717