Why does the Harvia C105S sauna control unit not turn on?
After a power surge, the Harvia C105 sauna control unit does not turn on. Fuses replaced. The current is coming. There is tension.
And the fuses were blown, that you changed them? In addition to the fuse in the control unit, there are other electronic components that could fail. I recommend contacting an electronics repair service if you do not have the skills to diagnose electronic circuit malfunctions. Most likely, either an element from the input stages or some element of the secondary power supply sources (PWM controllers and their wiring) failed from a power surge.
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