Error' And Warning Indicators 12 - Airrex AHSC-140P 220/3 User Manual

'ERROR' and WARNING INDICATORS
Error Code
e2
e3
e3
E4
12
Problem
High pressure
Blocked COND filter.
Blocked / kinked exhaust duct.
Ambient temperature is too
high.
Low pressure Verify Electrical.
Refrigerant may be low
or empty.
AF sensor If the AF sensor is short
circuited or cut 'E3 & A1'
displayed and the 'Error'
LED will be on.
TH sensor If the TH sensor is short
circuited or cut 'E3 & rt'
displayed and the 'Error'
LED will be on.
Compressor EOCR is operated.
Low supply voltage.
Magnet switch is
inoperative.
Cond Fan Motor EOCR is operated.
Low supply voltage.
Magnet switch is
inoperative.
Cause
Clean the COND filter.
Ensure exhaust duct is not
blocked / kinked.
Do not use the air conditioner if
ambient temperature is higher
than 113℉.
Verify Power (Voltage / Amps).
Check refrigerant level and
refrigerant leakage.
Clean Filter and Coil.
Check Evaporator Filter.
Check Evaporator Coil.
Exchange AF sensor.
Exchange TH sensor.
Check voltage is in
220 Va.c. (±10%)
Check capacitor.
Check compressor.
Check Magnet switch.
Check wiring.
Check voltage is in
220 Va.c. (±10%)
Check capacitor.
Check Cond Fan Motor.
Check Magnet switch.
Check wiring.
Corrective Action