Daikin AT12BV1LS Pocket Manual page 72

Si10-417
Trouble
shooting
Check No.4
Refer to
P.151
Check No.6
Refer to
P.157
Check No.11
Refer to
P.162
Service Diagnosis
Be sure to turn off power switch before connect or
Caution disconnect connector, or parts damage may be occurred.
Check No. 6
Check the thermistors.
Functioning
Check No. 4
Check the electronic
expansion
valve.
Functioning
Check No. 11
Check the refrigerant
line.
Functioning
Troubleshooting
Malfunctioning
l
Replace a defective
Discharge
thermistor.
pipe
thermistor
l
Outdoor
unit heat
exchanger
thermistor
l
Outdoor
temperature
thermistor
Malfunctioning
Replace the valve
itself or the coil.
Malfunctioning
l Refer to the refrigerant
Refrigerant
line check procedure.
shortage
l
Four way
valve
malfunc-
tioning
l
Water
mixed
l
Stop valve
defective
Replace the outdoor
unit PCB.
(R2846)
71