Daikin EWYQ230DAYN Сервис мануал онлайн [422/524] 403923

Daikin EWYQ230DAYN Сервис мануал онлайн [422/524] 403923
Overview of Fault Indications and Safeties ESIE06-05
3–22 Part 3 – Troubleshooting
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4
5
1E6/2E6 COMPR PR
Purpose
Protection of the compressor if the compressor is working outside the operation range.
153/253 : FAN OVERC. 1/2/3
Purpose
To avoid overheating of the fan motor.
Symptom: High pressure switch and high pressure setback
POSSIBLE CAUSES CORRECTIVE ACTION CONSEQUENCE
Condenser fan does not oper-
ate properly
Check that the fans turn freely.
Clean if necessary.
Unload compressor till only 1
compressor is in operation.
Dirty or partially blocked con-
denser.
Remove any obstacle and
clean condenser coil using
brush and blower.
Inlet air temperature of the
condenser is too high.
The air temperature measured
at the inlet of the condenser
may not exceed 43°C.
Fan turning in the wrong direc-
tion.
Two phases of the power
supply to the fan motor must
be inverted (by a licensed
electrician).
RESET: After pressure decrease this warning automatically resets.
Symptom: Compressor protection (function of controller) is activated
POSSIBLE CAUSES CORRECTIVE ACTION CONSEQUENCE
Compressor is working out-
side the operation range
Check the operation condition
of the compressor. "Protection
control of compressor running
area during heating" on
page 2–117.
Circuit is switched off.
RESET: When the temperature has returned to normal, the controller resets automatically.
Symptom: Fan overcurrent is activated
POSSIBLE CAUSES CORRECTIVE ACTION CONSEQUENCE
Mechanical failure (fan is
blocked)
Check that the fan rotates
freely.
Warning or safety displayed on
the controller, when warning is
selected unit will continue
operation.
Air flow in the unit too low or
outdoor temperature too high.
Clean the air heat exchanger
properly.
RESET: Push the blue button on the fan fuse inside the switchbox and reset the controller.

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