SMEG
No Power / Supply or Fuse Failure
Unit does not power on at all; no lights or display on indoor unit
Advertisements
Safety Warning
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.
Advertisements
Possible Causes
Tripped circuit breaker, Blown internal fuse on indoor PCB, Loose power terminal connections, Faulty power cord (portable units)
How to Fix / Troubleshooting
Safety first: Before opening any covers, switch off the breaker and verify with a tester that power is off.
- Check breaker: Inspect the dedicated AC breaker in the distribution board. Reset if tripped; if it trips again immediately, do not force it—there may be a short.
- Verify outlet (portable): Plug another appliance into the same outlet to confirm power is present.
- Inspect terminal block: Remove the indoor electrical cover and ensure L/N/E wires are tight and not burnt.
- Check internal fuse: Many SMEG indoor PCBs have a small glass or ceramic fuse. If blown, replace only with the same rating. If it blows again, a deeper fault exists.
If there is still no power after these checks, the indoor PCB may be defective and should be tested/replaced by a technician.
Advertisements
Repair Difficulty
Medium
3/5
Required Part
Indoor Main Control PCB
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements