No cooling
N
Are the top
hot/cold water indicators
flashing?
Low/full water level sensors are faulty.
Are the
second lowest hot/cold
water indicators flashing on
the FND?
Water level sensor error
Y
Check the water level
sensor and replace it if
necessary.
N
Are the top
second hot/cold water
indicators flashing on the
FND?
Detecting water overflow.
Check the filter fittings
and full water level sensor.
Replace them if necessary.
Y
Water level sensor
is faulty.
Check the water level
connector. If it is normal,
replace the water level
sensor
.
Compressor voltage range AC 220V±15%
(AC 187V ~ AC 253V)
Water level sensor or overflow sensor defect:
HEATER, COMP OFF When the power is turned off and then
on again, the system returns to normal operation.
Water level sensor error: The heater and compressor are
turned off. When the power is turned off and then on again,
the system returns to normal operation.
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