Hoval No power to furnace

Furnace is completely dead, no display or lights

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Tripped circuit breaker, Blown internal fuse on Hoval control board, Faulty main power switch, Loose supply wiring

Safety: Only qualified persons should open electrical panels. Do not work on live circuits.

Check breaker: Locate the dedicated furnace breaker and ensure it is in the ON position. Reset if tripped once; if it trips again, call an electrician.
Verify main switch: Confirm the furnace's local isolator or power switch is turned on.
Inspect power cable: Look for obvious damage to the supply cable or plug (if fitted).
Internal fuses: A technician can open the control panel and check/replace internal fuses with identical ratings.

Medium 3/5

Main Power Switch

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