Troubleshooting; Fault Codes - Friedrich Chill Premier Inverter Series Service Manual

Fault Codes

Code
RT=Room Temperature
NOTE: Always remove power from unit to reboot and see if fault clears before attempting to troubleshoot or repair.
E0
E1
E2
E3
E4
E6
E7
E8
E9
EA
Eb
EE
EF
EU
P0
P1
P2
P4
P5
P6
P7
P8
P9
PA
F0
F1
F2
23

TROUBLESHOOTING

Reason
Display and Main PCB Communication failure
Indoor Room Temperature sensor failure.
Indoor Coil temperature sensor failure. (Indoor
IPT failure)
Outdoor Coil temperature sensor failure. (OPT)
AC Cooling system abnormal
Indoor fan failure
Outdoor Ambient Temperature sensor failure
Outdoor Discharge Temperature sensor failure.
IPM / Compressor driving control abnormal.
Main PCB Current Test circuit failure
Communication abnormal of Main PCB and
Display board
Main PCB EEPROM failure.
Outdoor DC fan motor failure.
Main PCB Voltage test circuit abnormal.
IPM module protection.
Over / under voltage protection.
Over current protection.
Compressor Discharge pipe Over temperature
protection.
Sub-cooling protection on Cooling mode.
Overheating protection on Cooling mode.
Overheating protection on Heating mode.
Outdoor Over temperature/Under temperature
protection.
Compressor driving protection (Load
abnormal).
Communication failure for TOP flow unit/
Preset mode conflict.
Infrared Customer feeling test sensor failure.
Electric Power test module failure.
Discharge temperature sensor failure
PROTECTION."
Figure 401
Remark
Follow troubleshooting flow chart.
Follow troubleshooting flow chart.
Follow troubleshooting flow chart.
Follow troubleshooting flow chart.
1. Check for leaking refrigerant or low
refrigerant Refer to Sealed System Repair
Section of this Manual.
Follow troubleshooting flow chart.
Follow troubleshooting flow chart.
Follow troubleshooting flow chart.
Follow troubleshooting flow chart.
1. Replace Main PCB.
1. Replace Display or main PCBs.
1. Replace Main PCB.
Follow troubleshooting flow chart.
Follow troubleshooting flow chart.
Follow troubleshooting flow chart.
Follow troubleshooting flow chart.
Follow troubleshooting flow chart.
Follow troubleshooting flow chart.
Follow troubleshooting flow chart.
Follow troubleshooting flow chart.
Follow troubleshooting flow chart.
Follow troubleshooting flow chart.
Follow troubleshooting flow chart.
Replace Display PCB
Check with remote Control function.
Check with remote Control function.
Check Oudoor Exhaust Temp. sensor.
Replace Manin PCB.