Daikin E-Series Service Manual page 236

SiBE12-818
Troubleshooting
Check No.04
Refer to P.254
Check No.06
Refer to P.256
Service Diagnosis
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Check the wiring and piping.
Wiring or piping out
of spec?
NO
Check No. 04
Check the electronic expansion
valve.
Motor functioning?
YES
Check No. 06
Check the outdoor unit heat
exchanger thermistor.
Thermistor
as specified in its
characteristic chart?
YES
Check No. 06
Check the room temperature
thermistor.
Thermistor
as specified in its
characteristic chart?
YES
Change the gas to let moisture
out of the unit (after drawing a
vacuum).
Error again?
NO
YES
NO
NO
NO
YES
Troubleshooting
Activate the wiring error check
mode.
Replace the defective EV or
coil.
Replace the heat exchanger
thermistor.
Replace the room temperature
thermistor.
Replace the room temperature
thermistor or indoor unit heat
exchanger thermistor.
Do the vacuum-drying.
Replace the indoor unit PCB
and then start the wiring error
check mode.
(R7182)
225