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Attention: The warranty does not cover damage caused by inadequate lay-up measures during
the winter.
TROUBLESHOOTING
This section provides useful information for diagnosing and correcting certain troubles which
may occur. Before starting the troubleshooting procedure, carry out a thorough visual
inspection of the unit and look for obvious defects such as loose connections or defective
wiring.
Before contacting your local dealer, read this chapter carefully, it will save you time and
money.
WHEN CARRYING OUT AN INSPECTION ON THE SWITCH BOX OF THE UNIT, ALWAYS MAKE
SURE THAT THE MAIN SWITCH OF THE UNIT IS SWITCHED ‘OFF’.
The guidelines below might help to solve your problem. If you cannot solve the problem,
consult your installer/local dealer.
The heat pump will not run.
Please check whether:
➢ There is supply voltage (tripped fuse, power failure).
➢ The operating switch on the wired controller is switched on, and whether the correct set
point temperature has been set.
The set temperature level cannot be reached.
Please check whether:
➢ The permissible operating conditions for the heat pump have been adhered to (air
temperatures too high or too low).
➢ The air inlet or outlet area is blocked, restricted or very dirty.
➢ There are closed valves or stop-cocks in the water pipes.
If you cannot correct the fault yourself, please contact your after-sales service technician.
Work on the heat pump may only be carried out by authorized and qualified after-sales service
technicians.
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