Daikin E-Series Service Manual page 233

Troubleshooting
Troubleshooting
Check No.04
Refer to P.253
Check No.06
Refer to P.255
224
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
SiENBE12-620
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 temperatu
thermistor or indoor unit heat
exchanger thermistor.
Do the vacuum-drying.
Replace the indoor unit
PCB and then start the
wiring error check mode.
(R4715)
Service Diagnosis