Hokkaido HWMI 150 A, Инструкция по установке и эксплуатации

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DIAGNOSTIC & ERROR CODES
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3-minutes Protection
After a blackout, when power is supplied again, it is necessary to wait 3 minutes before Unit may restart
(for protecting compressor).
In case of intervention of a self-protection, please check the following:
- When the Power indicator lights up, if the system is forced to run while startup requirements have not been
met;
- If the air outlet or inlet is blocked, or strong wind blows to air outlet.
Defrosting (not available on these Models)
When it is humid and cold, the evaporate may defrost and the water-heating capacity decreases.
The system will stop heating water and start defrosting, at the end of which water-heating will be restarted.
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Temperature Display
During defrosting, the compressor stops while fan motor runs at high speed.
The defrosting time varies from 3 min. to 10 min., according to the ambient temperature and the frost.
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When the system stops, a decrease of the temperature is normal.
When it decreases to some point, the system will restart automatically;
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During water-heating, the displayed water temperature might still decrease or not increase for a period of time
because of the heat exchange of the water. When the whole tank of water has reached the set temperature,
the system will stop automatically.
In case of malfunction or error, it is recommended to stop Unit’s operation and to disconnect the appliance.
Please contact the Authorized Technical Service.
DIAGNOSTIC 10.
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Non-error Malfunction
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Authorized Technical Service
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Malfunctions and Solutions
Malfunction
Outlet
water is
cold.
The display
is dark.
No hot
water from
the outlet.
Water
leakage
Cause
Solutions
Bad connection of power
supply plug and socket;
Outlet water is set an a low
temperature;
Outlet water temperature
controller is damaged;
Circuit board of indicator
is damaged.
Tap water has been cut away;
Water pressure is too low;
Inlet valve has been closed.
The joints on the pipeline are
not sealed well.
Reconnect the plug;
Set outlet water an a
higher temperature;
Contact Authorized
Technical Service.
It’ll return to normal
after water is
supplied;
Use it when the
pressure is higher;
Open the inlet water
valve.
Check and reseal
all the joints.
Table 10-1