Furnace Wouldn't Light:
1) Cleaned Ignitor.
2) Cleaned Flame Sensor.
Watched what happened: Purge, Blower Start, Ignitor Activates, gas valve clicks, nothing happens.
Gas Water Heater is working fine.
3) Tried tapping on valve after click, nothing
4) Called service
They traced it back to low voltage to gas valve, traced back to two safety switches on fan. He jumped them out, system fired up. Pulled jumper off & it shut down.
Said he wanted to confirm some things, then came back in & said it's working fine. Admitted he can't exactly explain why they were tripped, why they wouldn't reset, or why they started working again. Have part numbers for new if needed.
Any opinions of the above, anything I should do next? Seems odd to me, but I know almost nothing about HVAC.
1) Cleaned Ignitor.
2) Cleaned Flame Sensor.
Watched what happened: Purge, Blower Start, Ignitor Activates, gas valve clicks, nothing happens.
Gas Water Heater is working fine.
3) Tried tapping on valve after click, nothing
4) Called service
They traced it back to low voltage to gas valve, traced back to two safety switches on fan. He jumped them out, system fired up. Pulled jumper off & it shut down.
Said he wanted to confirm some things, then came back in & said it's working fine. Admitted he can't exactly explain why they were tripped, why they wouldn't reset, or why they started working again. Have part numbers for new if needed.
Any opinions of the above, anything I should do next? Seems odd to me, but I know almost nothing about HVAC.