REMKO RVT 262 - Fan Speed and Sensor Error Troubleshooting

Error E3: Indoor fan speed has been out of control
Shut off the power
supply and turn it on
5 seconds later. Is it
still displaying the
error code?
NO
The unit operates normally.
YES
Shut off the power
sopply, rotate the
cross fan by hand.
Does it rotate prop-
erly?
NO
Disassembly the connection between fan
and motor, check if the bearing is normal?
YES
YES
NO
Check the wires of
fan motor. Are all
the connections
good?
NO
Correct the connec-
tions.
Replace indoor fan
motor.
Replace the
bearing.
YES
Check the resist-
ance value of indoor
fan motor, is it
normal?
NO
Replace indoor fan
motor.
YES
Replace indoor
PCB.
Error E3-E4 and F1-F3 : sensor error
Check the connections between temperature
sensor and PCB. Are the connections good?
NO
Correct the connetions.
YES
Check the resistance of the sensor. Use the
resistance-sensor. Does the Resistance of the
sensor with the value in the table match?
NO
Replace the sensor.
YES
Replace indoor or outdoor PCB.
REMKO RVT-ARCTIC-WP
52