41 16021730 Rev. 0
Diagnostic Control Mode
SERVICE TEST
05
EVAPORATOR
THERMISTOR
SERVICE TEST
04
FREEZER
THERMISTOR
SERVICE TEST
06
AMBIENT
THERMISTOR
SERVICE TEST
07
FRESH FOOD
FAN
SERVICE TEST
08
FREEZER/EVAP
FAN
SERVICE TEST
09
DAMPER OPEN
SERVICE TEST
10
DAMPER CLOSE
If test fails check for plus 12 VDC JP7-7,5 and plus 8 to 14 VDC JP7-7,6. If voltages
exist at control check harness at fan terminals.
PI - START & STOP TEST
DISPLAY
PA - TEST PASSED
Hi - FAN TOO FAST
Lo - FAN TOO SLOW
During 7 to 10 second damper operation 11 VAC can be
measured at terminals JP7-9,10 and JP7-11,12.
PI - Initiate Damper Movement
Upon initiation of this test the damper will immediately begin
opening. This takes 7 - 10 seconds and will have to be
observed by the service technician.
During 7 to 10 second damper operation 11 VAC can be
measured at terminals JP7-9,10 and JP7-11,12.
PI - Initiate Damper Movement
Upon initiation of this test the damper will immediately begin
closing. This takes 7 - 10 seconds and will have to be
observed by the service technician.
If test fails check for plus 12 VDC JP7-3,1 and plus 8 to 14 VDC JP7-3,2.
If voltages exist at control check harness at fan terminals.
PI - START & STOP TEST
DISPLAY
PA - TEST PASSED
Hi - FAN TOO FAST
Lo - FAN TOO SLOW
Measure thermistor ohms at connector JP1-7,8. If open or short circuit check thermistor
part at terminals in machine compartment. If part is good, debug wire harness.
PI - START & STOP TEST
DISPLAY
PA - TEST PASSED
SH - SHORTED THERMISTOR INPUT
OP - OPEN THERMISTOR INPUT
Measure thermistor ohms at connector JP7-18,19. If open or short circuit check
thermistor part at terminals in evaporator compartment. If part is good, debug wire
harness.
PI - START & STOP TEST
DISPLAY
PA - TEST PASSED
SH - SHORTED THERMISTOR INPUT
OP - OPEN THERMISTOR INPUT
Measure thermistor ohms at connector JP2-1,2. If open or short circuit check thermistor
part at terminals in Freezer compartment. If part is good, debug wire harness.
PI - START & STOP TEST
DISPLAY
PA - TEST PASSED
SH - SHORTED THERMISTOR INPUT
OP - OPEN THERMISTOR INPUT
IN
OUT