Haier AU282AHERA, AU182AFERA Trouble display, Installation Procedure, Electric wiring, 2Test run

Installation Procedure Electric wiring

(1)Before starting test run (for all Heat pump models)

Confirm whether the power source breaker (main switch) of the unit has been turned on for over 12 hrs to energize the crankcase heater in advance of operation.

(2)Test run

Run the unit continuously for about 30 minutes, and check the following. Suction pressure at check joint of service valve for gas pipe.

Discharge pressure at check joint on the compressor discharge pipe. Temperature difference between return air and supply air for indoor unit.

10. Trouble display

Trouble description	Display of LED borad	Analyze and diagnose
	LED 5-4-3-2-1
Spdu module failure	00001	Spdu module failure
Abnormal of DC moter	00010	Jam of DC motor or motor failure
Communication error between indoor and outdoor	00011	Communication fail over 4min
unit
Compressor discharging temprerture protection	00100	Compressor discharging tempreature
		over 120 centigrade
Spdu module over current protection	00101	Current of spdu module over 21A last
		4set
Abnormal of outdoor ambietn sensor	00110	Outdoor ambietn sensor short-circuit or
		open-circuit last 3sec
Abnormal of piping sensor or suction sensor	00111	Piping sensor or suction sensor short-
		circuit or open-circuit last 3sec
High pressure protection	01000	System high pressure over 4.5Mpa
Abnormal of compressor discharge sensor	01001	Compressor discharge sensor short-
		circuit or open-circuit
The power supply is not the 50Hz	01010	The power supply is not the 50Hz
Eeprom failure	01110	Outdoor main board eeprom fail
Compressor JAM	01111	Inner compressor is abnormal
Compressor vibration abnormal	10000	Compressor vibration abnormal when
		start-up
Compressor start-up abnormal	10001	Compressor start-up abnormal
Rotor of inner compressor is malposition	10010	Rotor of inner compressor is malposition
		when start-up
Position-inspect circuit failure	10011	Position-inspect circuit failure of spdu
		module
Compressor failure	10100	Compressor failure
Compressor suction sensor over high	10101	In operation the suction temperature
		over 40 centigrade
Communication error between main board and	10110	Communication error between main
spdu module		board and spdu module
Spdu module temperture protection	10111	Spdu module temperture is too high
Low pressure protection	11000	System low pressure under 0.15Mpa

Note:

For display of LED board, the number "1" mean the LED is light. the number "0" mean the LED is OFF.

User should not to change the dip switch of LED board.

Please consult the operation and instrucion to get detailed information about outdoor unit trouble.

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