hey guys - I know there are a couple HVAC techs on here.
We have a mid-eighties forced-air NG furnace and probably much older A/C unit. Haven't had any issues before this (owned the house since '10) and it's been tested/inspected three? times.
When the fan is on (via switch at the thermostat to the forced on position), there is a fairly loud buzzing coming from the side-mounted transformer? box, it's not coming from inside the furnace.
With heat on, no noise, heat is normal (only tested...
We have a mid-eighties forced-air NG furnace and probably much older A/C unit. Haven't had any issues before this (owned the house since '10) and it's been tested/inspected three? times.
When the fan is on (via switch at the thermostat to the forced on position), there is a fairly loud buzzing coming from the side-mounted transformer? box, it's not coming from inside the furnace.
With heat on, no noise, heat is normal (only tested...
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