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SET Energietechnik Ltd. * August-Blessing-Str. 5 * D-71282 Hemmingen * Tel.: +49 (0)7150 9454-0 Fax: +49 (0)7150 2337
Heat pump troubleshooting table
It is essential to disconnect the device from the mains before undertaking electrical work!
Work on the refrigeration part may only be carried out by experts.
Complaint
Possible fault
Possible cause and solution
As a general rule in
the event of faults:
Check all cable contacts to the regulator and on the protection
plate for tightness and possible arcing spots.
Error codes in the regulator indicate the cause of the fault
Error message A 08
Flow monitor
compressor not
running, fan not
running
no water flow
Filter pump off,
Air in the system, using ball valve
Increase upstream pressure at the
water outlet of the heat pump; refer to
the installation instructions in the
operating instructions
Fan off, compressor
off, regulator dark
open customer-installed
switch
Check external On/Off, check bridge to
terminal X1 3/4