High Temperature Of Cond Sensor - Samsung DVM Series Service Manual

8
Troubleshooting

8-2-2. High temperature of COND sensor

Outdoor unit display
Indoor unit display
Judgment method
Causes
After leaving the outdoor unit for one hour before test operation compare COND sensor temperature with that of OATS, and if COND sensor
temperature is 10°C higher, it is sensor defect. Replace the COND sensor.
Error reset(KEY 3)
Is obstacles at
the air inlet/outlet of
outdoor air?
Check the fan motor
capacitor and wire
Yes
Test operation (KEY 4)
Fan motor running smoothly?
Yes
Is COND sensor temperature
normal?
Is high pressure normal?
Yes
Since it is the COND sensor failure,
replace the COND sensor.
(Operation) (Timer)
- Stop and re-start when condensate temperature of compressor is 67°C. System
- down error when detection is made 6 times(counter cleared if no detection for 1 hour)
- Outdoor fan motor trouble(stocked, defect)
- Fan motor capacitor defect or wire open/COND sensor defect
- Polluted outdoor heat exchanger
No
No
(Fan) (Filter) (Removing frost)
Yes
Remove the obstacles.
No
Check the wire and replace the
capacity if necessary
Check the stock and abnormality and
No
replace the fan motor
Yes
System check completed.
No
Wash the outdoor heat exchanger and
remove obstacles around the outdoor unit
- 172 -
if necessary.
and retry.