Daikin RZP100DVAL [173/255] Radiation fin temperature increased

Daikin RZP125DTAL [173/255] Radiation fin temperature increased
Troubleshooting by Remote Controller Display / LED Display SiE25-110
164 Troubleshooting
6.26 Radiation Fin Temperature Increased
Remote
Controller
Display
L4
Outdoor Unit LED
Display
A 5 1 3 2 3 3 3 4 4
Applicable
Models
RZP71~140D
Method of
Malfunction
Detection
Fin temperature is detected by the thermistor of the radiation fin.
(Thermistor for RZP 100, 125, 140D is on power transistor (IGBT).)
Malfunction
Decision
Conditions
When the temperature of the inverter radiation fin increases abnormally due to faulty heat
dissipation.
Supposed
Causes
Activation of fin thermal switch
Faulty fin thermistor
High outside air temperature
Insufficient cooling of inverter radiation fin
Blocked suction opening
Dirty radiation fin
Faulty outdoor unit PCB
Troubleshooting
Fin temperature detection values
Detection Reset
RZP71D 90˚C 80˚C
RZP100~140D 98˚C 88˚C
Is reset possible?
NO
NO
NO
(S2031)
Do LEDs on
outdoor unit PCB indicate
fin temperature
abnormality?
Reset
YES
YES
YES
Could
problem be
caused by high fin
temperature? See
detection value
table below.
Correct the problem.
Inspect outdoor unit PCB
and remote controller.
Check remote controller
indication.
See the section on error.
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.

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