Daikin REYQ8-48PY1B, Руководство по обслуживанию

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Troubleshooting by Indication on the Remote Controller SiBE37-701_B
271 Troubleshooting
3.6
“
A8
”
Abnormal Power Supply Voltage
Remote
Controller
Display
A8
Applicable
Models FXMQ20~140P
Method of
Malfunction
Detection Detect malfunction checking the input voltage of fan motor.
Malfunction
Decision
Conditions When the input voltage of fan motor is 150V and below, or 386V and above.
Supposed
Causes The possible causes are:
„
Power-supply voltage malfunction.
„
Connection defect on signal line.
„
Wiring defect.
„
Instantaneous blackout, others.
Troubleshooting
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
NO
YES
Correct any fault.
NO
YES
Check and correct each wiring.
It is possible to have external
factor, such as brownout and
instantaneous blackout.
There are problems on the
condition of power source
described above.
"
A8
"
Reoccurrence of
malfunction.
Check the condition of the
power source.
Check if power-supply
voltage is 220V - 240V
± 10%.
Check if there is power
open phase or faulty
wiring.
Check if power-supply
voltage unbalance is
within 6V.