Daikin 2AMX40G3V1B User Manual

Troubleshooting for RA Indoor Unit SiBE121123_A
159 Service Diagnosis
5.2 Freeze-up Protection Control or Heating Peak-cut
Control
Error Code
A5
Method of Error
Detection

Freeze-up protection control
During cooling operation, the freeze-up protection control (operation halt) is activated
according to the temperature detected by the indoor heat exchanger thermistor.

Heating peak-cut control
During heating operation, the indoor heat exchanger temperature is used for the heating
peak-cut control (operation halt, outdoor fan stop, etc.)
Error Decision
Conditions

Freeze-up protection control
During cooling operation, the indoor heat exchanger temperature is below 0°C.

Heating peak-cut control
During heating operation, the indoor heat exchanger temperature is above 65°C.
Supposed
Causes

Short-circuited air

Clogged air filter of the indoor unit

Dust accumulation on the indoor heat exchanger

Defective indoor heat exchanger thermistor

Defective indoor unit PCB

Daikin 2AMX40G3V1B Specifications

General

Brand	Daikin
Model	2AMX40G3V1B
Category	Air Conditioner
Language	English