Haier 1U12AP2VHA - Checking The Up;Down Or Left Stepper Motor; Checking The Indoor DC Fan Motor; Optimizing Performance; Cleaning the Front Cover

ERROR CODES & PROBLEM SOLVING
PAGE 40
ENGLISH
Checking the Up/Down or Left Stepper Motor
Step 1
Disconnect the Up/Down or Left Stepper Motor plug from
the control board connector for this test. Failure to do so may
provide inaccurate readings.
Step 2
There are ve wire colors; red, orange, yellow, purple and
blue. The resistance between the red wire and any other wire
should be 200 to 300Ω approximately.
Step 3
Re-seat the plug on the connector at the conclusion of the
test.
Checking the Indoor DC Fan Motor
Step 1
Disconnect the DC Fan Motor plug from the control board
connector for this test. Failure to do so may provide
inaccurate readings.
Step 2
Refer to the chart shown below for plug pin combinations and
resistance values.
Note: Test is polarity sensitive, adhere to probe placement as
shown in chart.
Red Test Lead
Black
Test
Lead
Pink X X Black White Blue Yellow
Pink X X 15.27Meg 15.46 Meg Innity 15.85 Meg
X X X X X X
X X X X X
Black 108.2K Innity 241.8K
White Innity 349.5K
Blue 5.14 Meg
Yellow
Step 3
Re-seat the plug on the connector at the conclusion of the
test.
Optimizing Performance
Cleaning the Front Cover
1. Open the front cover by
pulling it upward
2. Remove the Filter: Gently
push up on the lter’s center
tab until it is released from
the stopper, and remove the
lter in a downward motion.
3. Clean the lter Use a
vacuum cleaner to remove
dust, or wash the lter with
water. After washing, dry the
lter completely.
4. Attach the lter Attach
the lter so that the
“FRONT” label is facing
outward. Make sure that
the lter is securly attached
behind the holding tabs. If
the lter is not attached
correctly the unit may not
achieve maximum eciency.
5. Close the front cover.