Haier AB072MRERA Service Manual page 525

Description for digital tube on remote receiver
(1) Being electrified for the first time, digital tube displays "88", then turns OFF about 3 seconds.
(2) Unit stop state: nothing display and shows OFF.
(3) Unit run state: Power on, the factory default setting is "Display setting temperature consistently"
a. Press display (light) button, after display environment temperature 5 seconds, it returns to setting temperature
status. b. Press display (light) button consecutively twice, if the interval of two press is less than 5 seconds, then
perform the function of the LED display out, press the LED display for the third time, it returns to normal display;
If the interval of two press is more than 5 seconds, then according to (1).
(4) When indoor or outdoor failure occurs, the digital tube displays failure code: the format is "EXX", if failure code
is more than 9, it will sliding display automatically.
■ If indoor is faulty, it displays indoor failure code.
■ If indoor is not faulty, it displays outdoor failure code. Outdoor failure code will be displayed E20 in sliding type
generally.
(5) Data query:
Entrance condition: set auto fan speed by remote controller, and press swing up/down for 8 times
■ Within 5 seconds, 2seconds later, the buzzer sounds 3 times, the digital tube will flash and display data.
■ Display information:
Set temp. by
remote control
16
17
18
19
20
21
22~30
Note:
In the course of data query:
Remote controller setting demand is null. (the set temperature shows the data to be checked)
Digital tube will flash to display data.
■ Quit condition: remote controller sets unit stop or no remote signal is received within 60 seconds.
LED on remote receiver description
(1) Being electrified for the first time, LED is ON, about 3 seconds later, being OFF.
(2) On unit stop, LED is OFF.
(3) On unit running,
■ ON/OFF indicator: LED1: without fresh air setting, LED1 is red; with fresh air, LED1 is green.
■ Timer/sleep indicator: LED2: with timer or sleep function, LED2 is on, and yellow; or LED2 is off.
■ Compressor running indicator: LED3: indoor Thermostat On and compressor running, LED3 is on and green;
or LED3 is off.
Data query
Indoor sensor Tai temperature
Indoor sensor TC1 temperature
Indoor sensor TC2 temperature
Indoor PMV open angle
Indoor communication address
Indoor central control address
No definition
Display integer, if temp. less than-9 degree,
Display integer, if open angle more than 99pls,
517
Remarks
sliding display.
sliding display.
Display integer
Display integer
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