Automatic Heating AHG R32 AW Series, Installation And Instruction Manual

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Inverter Air Source Heat Pump (AHGR32AW17) - Installation and Instruction Manual
06. Troubleshooting
6.1 Malfunction Tables
6. Troubleshooting
You can refer to the malfunction table below to find out the failure cause & solution
Protect/fault Fault Code Reason Elimination methods
Standby Non
Normal boot Non
Inlet Temp Sensor Fault P01 The temp. sensor is broken or short circuit Check or change the temp. Sensor
Outlet Temp Sensor Fault P02 The temp. sensor is broken or short circuit Check or change the temp. Sensor
Hot water Temp Sensor Fault P032 The temp. sensor is broken or short circuit Check or change the temp. Sensor
AT Sensor Fault P04 The temp. sensor is broken or short circuit Check or change the temp. Sensor
Coil temp Sensor Fault P153 The temp. sensor is broken or short circuit Check or change the temp. Sensor
Suction temp Sensor Fault P17 The temp. sensor is broken or short circuit Check or change the temp. Sensor
Exhaust temp Sensor Fault P181 The temp. sensor is broken or short circuit Check or change the temp. Sensor
Exhaust Over temp Fault P182 The compressor is overloaded
Check whether the system of the compressor is
running normally
Exhaust Pressure Sensor Fault PP1 The pressure sensor is broken or short circuit Check or change the pressure Sensor or pressure
Suction Pressure Sensor Fault PP2 The pressure sensor is broken or short circuit Check or change the pressure Sensor or pressure
EVI Inlet Temp Sensor Fault P001 The temp. sensor is broken or short circuit Check or change the temp. Sensor
EVI Outlet Temp Sensor Fault P002 The temp. sensor is broken or short circuit Check or change the temp. Sensor
Low AT Protection TP The ambient temp. is low
Flow Switch Protection E032 No water / little water in water system Check the pipe water flow and water pump
Electric Overheat Protection E04 The electric-heater protection switch is broken
Check to see whether the electric heater has been
running under the temperature over 150ºC for a
long time
Compressor Overcurrent
Shutdown Fault
E051 The compressor is overloaded
Check whether the system of the compressor is
running normally
Communication Fault E08
Communication failure between wire controller and
mainboard Check the wire connection between remote wire
controller and main board
Communication Fault(Fan ) E081 Speed control module and main board communication fail Check the communication connection
HP Protection E11 The high-pressure switch is broken Check the pressure switch and cold circuit
LP Protection E12 The low-pressure switch is broken Check the pressure switch and cold circuit
Anti-freezing Protection E171 Use side water system temp. is low
1. Check the water temp or change the temp. sensor
2. Check the pipe water flow and whether the water
system is jammed or not
Primary Anti-freezing Protection E19 The ambient temp. is low
Secondary Anti-freezing Protection E29 The ambient temp. is low
DC Fan Motor 1 Failure F031
1. Motor is in locked-rotor state
2.The wire connection between DC-fan motor module
and fan motor is in bad contact 1. Change the fan motor
2. Check the wire connection and make sure they
are in good contact
DC Fan Motor 2 Failure F032
1. Motor is in locked-rotor state
2.The wire connection between DC-fan motor module
and fan motor is in bad contact 1. Change the fan motor
2. Check the wire connection and make sure they
are in good contact
Communication Fault E08
Communication failure between wire controller and
mainboard Check the wire connection between remote wire
controller and main board
Syst1:Comp Overcurrent E101 The compressor is overloaded
Check if the system of the compressor is running
normally
Syst2:Comp Overcurrent E201 The compressor is overloaded
Check if the system of the compressor is running
normally
Syst1: HP Protection E11 The high-pressure switch is broken Check the pressure switch and cold circuit
Syst2: HP Protection E21 The high-pressure switch is broken Check the pressure switch and cold circuit
Syst1: LP Protection E12 The low-pressure switch is broken Check the pressure switch and cold circuit
Syst2: LP Protection E22 The low-pressure switch is broken Check the pressure switch and cold circuit
Flow Switch Protection E032 No water/insufficient water in water system Check the pipe water flow and water pump
Aux Superheat Protection E04 The electric-heater protection switch is broken
Check if the electric heater has been running under
the temperature over 150ºC for a long time
Prim Anti-freezing Prot E19 The ambient temp. is low
Secondary Anti-freezing Prot E29 The ambient temp. is low
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