Test 3 : Replace Main PCB
If Test 1 - 2 do not improve the symptom, change Main PCB.
Test 4 : Replace Compressor
If Test 3 do not improve the symptom, change Compressor.
1. Outdoor Heat Exchanger clogged 2. Outdoor Fan Operation failure
3. Main PCB
4. Inverter compressor failure (lock, winding short)
Test 1 : Check ambient temp. around motor,Heat Exchanger
Check excessively high temperature around the motor.
(If there is any surrounding equipment that causes heat)
Is there anything obstructing the air distribution circuit?
Is there any clogging of Outdoor Heat Exchanger?
>> Upon the temperature coming down, restart operation.
Test 2 : Check Outdoor Fan
Is the Fan rotating by hand when operation is off?
>> If the Fan Motor is locked, replace it.
OK
OK
OK
Trouble shooting 33
OUTDOOR UNIT Error Method:
Over Current Error
Outdoor unit main PCB circuit
Compressor
“Protection stop by overcurrent generation after inverter compressor start
processing completed” generated consecutively 5 times.
Detective Actuators:
Detective details:
Indicate of Display:
* The number of generations is reset if the start-up of the compressor succeeds.
Forecast of Cause:
02-48
Indoor Unit
Outdoor Unit
Operation lamp : 9 time Flash
ERROR CODE : [E : 94]
Timer lamp
: 4 time Flash
Monitor
A
B
C
D
E
F
9
: Light ON
: Light OFF
n : n time blinking
4