13 Troubleshooting and customer service
13.1 Troubleshooting and customer service
The unit has been manufactured using state-of-the-art production methods and has been tested several
times to ensure that it works properly
. However, in the event that malfunctions should occur, the unit should
be checked against the list below. Please inform your dealer if the unit is still not working correctly after all of
the functional checks have been performed.
Fault description Cause Remedy
System does not function Power supply correct? Switch electricity off/on and check
voltage
Cable connections correct? Check connections and replace if nec-
essary
Fuse correct? Check fuses and replace if necessary
High pressure fault Excess refrigerant Refill
Condenser too hot Reduce temperature in the storage
tank
Low pressure alarm Refrigerant level low Check circuit for leaks
2. Refrigerant filter/capillary blocked Replace filter or capillary tube
Suction air temperature too cold/not
present
Check air supply/temperature
No hot water being supplied Shut-off cocks for water supply
closed
Open shut-off cocks
Water pressure too low Increase water pressure
Display remains dark Safety temperature limiter has trig-
gered
Reduce the temperature in the storage
tank
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