Download PART 7 TROUBLESHOOTING

XRV Systems
Operation lamp flashes:
Run lamp flashes at 2.5Hz.
The evaporator sensor check point is abnormal or room temp.
sensor is abnormal.
Yes
Judge 1: Check evaporate temperature sensor is break off.
Connect it well.
No
Judge 2: Evaporate temperature sensor is abnormal.
No
Validate: Check whether the resistance of the evaporate
Replace temperature sensor
temperature sensor is correct according to Annex 1.
Yes
Yes
Judge 3: Check room temperature sensor is break off.
Connect it well.
No
Judge 4: Room temperature sensor is abnormal.
Validate: Check whether the resistance of the room
temperature sensor is correct according to Annex 1.
Yes
Replace the indoor PCB.
328
No
Replace temperature sensor