Troubleshooting - Dimplex LIA 0608HWCF M Installation And Operating Instruction

LIA 0608HWCF M - LIA 0911HWCF M

9.3 Troubleshooting

If the split heat pump is experiencing problems during opera-
tion or is not working at all, check the following points.
9.3.1 Removing faults during operation
Pos. Fault
Insufficient heating
1
or cooling.
The outdoor unit is
not working, despite correct
2 Power supply
(information on the
control panel).
Noises from the
3
water pump
Water is drained off
4 through the
drain hose.
Domestic water is not
5
heated
CAUTION!
When filling the system, ensure that only the specified
refrigerant is used.
CAUTION!
When filling the system, please note the filling quantity of the
system. If the pipeline is extended, a modified filling quantity
may be required.
CAUTION!
The installation of piping should be restricted to the minimum
possible.
CAUTION!
Always wear adequate personal protective equipment
(protective gloves, safety glasses, etc.) when working with
refrigerant.
CAUTION!
Work involving R32 refrigerant must only be carried out by
experienced and adequately trained personnel.
CAUTION!
Only equipment and tools intended for the product, pressure
and temperatures may be used for work on the device.
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Before opening the device, ensure that all electric circuits are
disconnected from the power supply.
Cause

Incorrect setting of the Check the setting of the heating curve on the heat pump manager
target temperature.

Insufficient Check the pressure gauge and add water until the pressure gauge shows a
water filling.
pressure of 2.0 to 2.5 bar.

Check whether the dirt trap is heavily soiled. If so, the dirt trap must be
cleaned.
Water flow is low.

Check whether the pressure indicator shows a pressure of at least 0.3 bar.

Check whether the water piping is blocked by soiling or limescale deposits.

Temperature on the If there is a temperature above 55 °C on the water inlet, the outdoor unit is
water inlet is too high.
switched off to protect the system.

Temperature on the
If there is a temperature below 5 °C on the water inlet, the outdoor unit is
water inlet is too
switched off to protect the system. Wait until the temperature on the water inlet
low.
has been increased by the indoor unit.

Open the protective cap of the purging fitting and add water until the pressure
gauge shows a pressure of 2.0 to 2.5 bar.
Purging has not been

If no water comes out after pressing on the tip (on the top side of the opening),
completed.
the purging process is not yet complete. If the system has been purged opti-
mally, water sprays out like a fountain when pressing on the tip.

Check whether the pressure indicator shows a pressure of at least 0.3
Water pressure is low. bar.

Check whether the equalising tank and pressure gauge are working correctly.

Too much water has been Open the lever of the safety valve and drain off more water until the pressure
added.
gauge shows a pressure of 2.0 to 2.5 bar.

Equalising tank is dam- Replace the equalising tank.
aged.
Thermal circuit breaker 
Open the front cover of the indoor component and press the Reset button
of the flange heater
or pipe heater has been
triggered

Domestic water heating
Check the settings on the heat pump manager on the indoor unit.
was deactivated.
When checking for leaks, do not expose the device to a
pressure higher than the maximum pressure declared on the
type plate.
452172.66.01-EN · FD 0204
CAUTION!
Solution
CAUTION!
English
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