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Does the cold-air come out
of the top of the main duct?
After reset the unit, take steps to PCB as follows
for temperature compensation.
1. In the case of 6871JB1431 ( by July 2007)
: Compensate with replacing RCR1
2. In the case of EBR34917102
(from Aug 2007)
: Compensate with Jump wire cutting
* Change RCR1
* Cutting of jumper wire
Enter the TEST 2 MODE
Does not cold-air come
out of the top of the
main duct?
No
Yes
Yes
Check the
Damper itself
Check the
Damper itself
No
Replace
Damper
Checking Damper itself
Is the resistance
Values between (1) & (4),
(2) & (3) like as below?
No
(1)RD
(2)WH
(1)BL
(2)YL
Resistance of Damper
373 ~456 ‰
(1) to (4)
373 ~456 ‰
(2) to (3)
Ressult
Temp. CompensionRCR1
Temp. Compensation
Cutting both jumpers affords a 2…
temperature compensation
- 1.0 deg
- 1.0 deg
JUMP WIRE
Ressult
- 0.5 deg8.2 k‰
- 1 deg5.6 k‰
- 1.5 deg3.3 k‰
- 2 deg2 k‰
- 2.5 deg470 k‰
Current
Colder
Test Point
JCR3
JCR4
Yes