12.5
The heat pump completely shuts down and does not start
Cause: May be due to power failure or a fuse being broken.
Measure: - Check that there is 230 V voltage up to the
main switch and that the zero is connected.
(I) Check that the fuses F5 and F6 on the control board are
full. See section 20 Connection terminals and fuses.
12.6
Overheating protection cannot be restored.
If the "Heater overheat alarm" cannot be reset with the red reset button described in
section 16.6, even if the heater is not overheated.
Cause: May be due to:
(J) A gap in the overheat protection.
(K) Cable break between overheat protection and control board.
(L) Interruption of the control card.
Measure: Contact your service partner.
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