hajdu HB200C Handbuch Über Inbetriebnahme, Bedienung Und Wartung Seite 88

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During defreezing, the fan stops, the four-direction valve turns the way of flow and
the compressor is operating continuously.
Defreezing may range from 3 minutes to 10 minutes, depending on the external
environment and the frost.
d) Temperature display
When the appliance stops, temperature decrease due to heat release is quite
normal. The system is started automatically after falling back to a certain heat degree.
During water heating, the indicated water temperature may decrease for a while or
it can not increase due to heat exchange of the water. When the tank has fully reached
the pre-set temperature, the appliance stops automatically.
10.9. Errors and solutions
Malfunctioning
The outlet water is
cold. The display is
dark.
No hot water from
the outlet.
Water leakage
10.10. Self-protective mechanisms of the appliance
a) In case of self-protection, the appliance shuts down, starts auto-check
and re-starts when the defensive mechanisms are put into operation.
b) During the launch of self-protection, the buzzer will buzz every other
minute and the ALARM indicator will glitter fast, the error code and water
temperature are displayed at one after the other. Press CANCEL for 3 seconds
to stop the alarm. The self-protection mechanisms solve the error and the error
code disappears from the display.
c) The appliance shall launch its self-protective mechanisms among the
following circumstances:
c.1) Air inlet or air outlet is blocked;
c.2) The evaporator is covered by too much dust;
c.3) The power source is inadequate (it exceeds the voltage range of 230V
(±10%) )
REMARK
In case of self-protection of the appliance, it has to be disconnected from the
electrical power system manually and restarted after solving the error.
1) Water temperature display
1.a) The water temperature data concerns water in the upper part of the tank (above
1/4), which is used by the user, but it does not cover all the quantity of the water stored.
1.b) The 6 indicator displayed next to the water temperature data measures the
temperature of the lower part of the water. When water temperature exceeds 50°C,
Reason
Check whether power supply
exists
Outlet water is set an a low
temperature; Outlet water
temperature
controller is damaged; Circuit
board of indicating 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.
Solutions
Set outlet water at a higher
temperature;
Contact the technician.
It will return to normal after
water supplied; Use it when
the pressure is higher;
Open the inlet water valve.
Check and reseal all the
joints.