Friedrich Error Code Search

Alpha-Numerical AC Error Codes

Code: E1
High pressure system protection

Code: E2
Anti freezing protection

Code: F0
Refrigerant defects

Code: E4
High discharge temperature protection of compressor

Code: E5
Overcurrent Protection

Code: E6
Communication malfunction

Code: E8
High Temperature Resistant Protection

Code: EE
EEPROM Malfunction

Code: EU
Frequency reduction due to high temperature of module

Code: C5
Jumper cap malfunction protection

Code: DC
Bus bar PL voltage is too low

Code: F1
Indoor ambient temperature sensor is open / small circuit

Code: F2
Indoor evaporator temperature sensor is open / small circulated

Code: F3
Outdoor ambient temperature sensor is open / small circulated

Code: F4
Outdoor condenser temperature sensor is open / small circulated

Code: F5
Outdoor discharge temperature sensor is open / small circulated

Code: F6
Decrease frequency due to overload

Code: F8
Frequency decrease due to overcrack

Code: F9
Reduction in frequency of due to high air discharge

Code: FH
Decrease frequency due to anti freezing

Code: H0
Frequency of decreases due to high temperature resistor during heating operation

Code: H1
Defrosting

Code: H2
Static surrender protection

Code: H3
Overload protection for compressor

Code: H4
System is abnormal

Code: H5
IPM Security

Code: H6
Internal motor (fan motor) does not operate

Code: H7
Desynchronizing of Compressor

Code: HC
PFC Security

Code: L3
Outdoor DC Fan Motor Malfunction

Code: L9
Power Protection

Code: LC
Failure startup

Code: LP
Does not match indoor unit and outdoor unit

Code: P0
Compressor minimum frequency in test state

Code: P1
Compressor rated frequency at test stage

Code: P2
Compressor maximum frequency in test state

Code: P3
Compressor intermediate frequency in test state

Code: P5
Overload protection of phase current for compressor

Code: P7
Module temperature sensor circuit malfunction

Code: P8
Module High Temperature Protection

Code: PH
Voltage too high for DC bus bar

Code: U1
Malfunction of phase current detection circuit for compressor

Code: U3
Malfunction of voltage dropping for DC bus bar

Code: U5
Malfunction current detection of complete units

Code: U7
Four-way valve is abnormal

Code: U9
Zero-crossing Outdoor Unit Malfunction