Haier AW07LC2VHA, Технический обзор

Страница: 38 / 122

TECHNICAL OVERVIEW
PAGE 38
ENGLISH
INDOOR WALL MOUNT UNIT TECHNICAL OVERVIEW
If the indoor fan motor does not run.
1. Remove the front cover and access the circuit board connection CN-9.
2. Reset power and turn the remote control fan command to Fan On mode.
Motor Test
1. If the motor doesn’t run, check for 310VDC between Pins 1 and 3. If it is not present, the indoor
board is bad. If voltage is present, continue on.
2. Check the voltage between Pins 3 and 4. The voltage should be +15VDC. If it is not present, the
board is bad. If voltage is present, continue on.
3. Check for voltage between Pins 3 and 6. If no DC voltage is present, the board is bad. If voltage is
present, change the motor.
Indoor Fan Motor Voltage Check
Replace the Blower Motor
Step 1. Disconnect the power.
Step 2. With the indoor unit cover removed, remove the two
screws on the left plastic evaporator coil bracket.
Step 3. Remove the cover from the electrical box on the right
side of the indoor unit.
Step 5. Lift and swing the electrical box out of
the way.
310VDC
Pins 1 - 3
15VDC
Pins 3 - 4
Motor Feedback
Signal
Pins 3 - 6
Replace the Blower Motor
Step 4. Remove the two screws that hold the
electrical box in place.