Does the
old-air come out
c
of the top of the main duct?
Yes
Enter the TEST 2 MODE
Does not cold-air come out
of the top of the main duct?
No
Checking Damper itself
Is the resistance
Values between (1) & (4),
(2) & (3) like as below?
(3)BL
(1)RD
(4)YL
(2)WH
Resistance of Damper
Test Point
Result
(1) To (4)
373 ~ 456 ½
(2) To (3)
373 ~ 456 ½
Yes
Check the
No
Damper itself
Check the
Yes
Damper itself
Replace
Damper
No
(Position
No:120A)
- 46 -
, take steps to PCB as
After reset the unit
follows for temperature compensation.
1. In the case of EBR419564
: Compensate with Jump wire cutting
JUMP
Temp.
WIRE
Compensation
JCR3
JCR4
Cutting both jumpers affords a 2¼
temperature compensation
* Cutting of jumper wire
-1.0 deg
-1.0 deg