Daikin RYN60E3V1B [145/300] Discharge pipe temperature control

Daikin RYN60E3V1B [145/300] Discharge pipe temperature control
Troubleshooting SiBE04-705
134 Service Diagnosis
4.13 Discharge Pipe Temperature Control
Remote
Controller
Display
F3
Method of
Malfunction
Detection
The discharge pipe temperature control (stop, frequency drooping, etc.) is checked with the
temperature being detected by the discharge pipe thermistor.
Malfunction
Decision
Conditions
If a stop takes place 6 times successively due to abnormal discharge pipe temperature, the
system will be shut down.
If the temperature being detected by the discharge pipe thermistor rises above °C, the
compressor will stop. (The error is cleared when the temperature has dropped below °C.)
The error counter will reset itself if this or any other error does not occur during the following
60-minute compressor running time (total time).
Supposed
Causes
Refrigerant shortage
Four way valve malfunctioning
Discharge pipe thermistor defective
(heat exchanger or outdoor temperature thermistor defective)
Outdoor unit PCB defective
Water mixed in the local piping
Electronic expansion valve defective
Stop valve defective
Troubleshooting
Check No.04
Refer to P.154
Check No.06
Refer to P.156
Check No.11
Refer to P.159
50/60 class 71 class
110 120
95 107
Replace a defective
thermistor.
Replace the valve itself or
the coil.
Refer to the refrigerant line
check procedure.
Replace the outdoor unit
PCB.
(R4700)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Check No. 06
Check the thermistors.
Malfunctioning
Discharge pipe thermistor
Outdoor unit heat exchanger thermistor
Outdoor temperature thermistor
Refrigerant shortage
Four way valve malfunctioning
Water mixed
Stop valve defective
Malfunctioning
Functioning
Functioning
Functioning
Check No. 11
Check the refrigerant line.
Malfunctioning
Check No. 04
Check the electronic expansion
valve.

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