jlinton
Jan 10, 2010, 09:01 AM
1. Last weekend we returned home to a cold house after being gone for the weekend.
Furnace switch in ON position
No tripped circuit
Pilot on
HVAC repairman comes next morning. Figures it is the transformer and replaces it. Voltage observed on one side but not the other side. Furnace works now.
2. 5 days later we wake up to a cold house:
Furnace switch ON
No tripped circuit
Pilot on
HVAC repairman comes. Flips on/off switch off, then on. Furnace comes on. He figures it is the damper so he sets it to always be open.
3. Next morning we wake up to a cold house:
Furnace switch ON
No tripped circuit
Pilot on
Damper now set to "open".
*I* flip on/off switch off, then on. Furnace comes on.
Question: what is going on? Sounds like some safety feature that is tripping. I don't want to get this know-nothing kid back out here, want to fix it myself or tell him EXACTLY what to do... I am not even convinced the transformer was broken the first time but replacing it did get the furnace to work. It could be that whatever the root cause of the problem is, it broke the transformer.
Any ideas are welcome.
Furnace switch in ON position
No tripped circuit
Pilot on
HVAC repairman comes next morning. Figures it is the transformer and replaces it. Voltage observed on one side but not the other side. Furnace works now.
2. 5 days later we wake up to a cold house:
Furnace switch ON
No tripped circuit
Pilot on
HVAC repairman comes. Flips on/off switch off, then on. Furnace comes on. He figures it is the damper so he sets it to always be open.
3. Next morning we wake up to a cold house:
Furnace switch ON
No tripped circuit
Pilot on
Damper now set to "open".
*I* flip on/off switch off, then on. Furnace comes on.
Question: what is going on? Sounds like some safety feature that is tripping. I don't want to get this know-nothing kid back out here, want to fix it myself or tell him EXACTLY what to do... I am not even convinced the transformer was broken the first time but replacing it did get the furnace to work. It could be that whatever the root cause of the problem is, it broke the transformer.
Any ideas are welcome.