Commercial Air Conditioner
Model: AU182AFERA
AD182AMERA, AS182AVERA
15.2.2 Rated heating
a. High speed at heating, the set temperature is 30
℃
, press temp. “+” and SET button
simultaneously, after the buzzer sounds 2 times, enter the condition.
b. In this condition, the unit will execute as follow: entering the rated frequency operation;
on the panel there will be heating mode; in communication, there is rated indication.
c. Quit condition: once receiving the remote signal, the unit will quit the rated operation
and then turn into remote control state.
16. Failure code
Failure code displayed on the indoor LCD:
Failure
code
description Remark
E1
Indoor room temperature sensor failure
Indoor room temp. sensor in short circuit, or open
circuit, it can resume due to the signal.
E2
Indoor coil temperature sensor failure
Indoor coil temp. sensor in short circuit, or open
circuit, it can resume due to the signal.
E4
EEPROM wrong
Being electrified to test E2 check sum, or E2 is
broken down.
E7
Communication failure between indoor and
outdoor
Communication failure alarms for 4 minutes
contineously, it can resume due to the signal.
E14
Indoor fan motor failure
Indoor fan motor wrong wiring or indoor fan motor
abnormal.
E18
Temperature cutoff protection
Outdoor 4-way valve response abnormal.
F1
Module failure
Outdoor module abnormal
F2
Outdoor DC motor failure
Outdoor DC motor abnormal
F4
Compressor overheat / discharging
temperature protection
Compressor discharging temperature over high
protection
F5
Module over current / current transducer
failure
F6
Outdoor ambient temp. sensor abnormal
Outdoor ambient temp. sensor in short current or
open circuit
F7
Outdoor suction/defrosting temp. sensor
abnormal
Outdoor suction/defrosting temp. sensor in short
circuit or open circuit
F8
High pressure abnormal
High pressure too high
F9
Low pressure abnormal
Low pressure abnormal
F10
No AC power supply
F11
Outdoor PCB EEPROM abnormal
Being electrified to test if the E2 check sum is
correct or failure
F13
Communication failure between outdoor
PCB and module
F14
Compressor discharging temp. sensor
failure
Outdoor compressor discharging temp. sensor in
short circuit or open circuit
F15
Compressor running faulty
Resumable
F16
Running state-detecting circuit failure
Outdoor DC compressor running state-detecting
circuit failure, or compressor abnormal, resumable
17. Emergency switch
17.1 In OFF state, press emergency switch for below 5 seconds contineously, the unit will begin
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