Outdoor Unit Error Code Explanation - Heat Controller A-VMH18DC-1 Service Manual

Service Manual

9.2 Outdoor unit error code explanation:

Outdoor
Error
Code:
E0
E1
E2
E3
E6
E4
E5
E7
P0
P1
P2
P3
P4
P6
P7
PF
LED STATUS
Outdoor EEPROM malfunction
Indoor unit A's coil outlet temp. sensor or connector of
sensor is defective
Indoor unit B's coil outlet temp. sensor or connector of
sensor is defective
Indoor unit C's coil outlet temp. sensor or connector of
sensor is defective
Indoor unit D's coil outlet temp. sensor or connector of
sensor is defective
Open or short circuit of outdoor unit temperature sensor
Voltage protection
Communication malfunction between IPM board and
outdoor main board
Temperature protection
compressor top.
For A-VMH-36QC-1 it means Temperature protection of
compressor discharge
High pressure protection (Only for A-VMH-36QC-1)
Low pressure protection (Only for A-VMH-36QC-1)
Current protection of compressor
IPM module protection
High temperature protection of condenser
Inverter compressor drive protection
PFC module protection (A-VMH36QC-1)
VMH SerieS
of compressor discharge
26
Corresponding Indoor
Mini-Split error code
E5
E5
E5
E5
E5
E5
P1
P4
or
P2
P2
P2
——
P0
——
P4
——
Heat Controller, Inc.