[sbhubbardrd7]

I installed a new Honeywell 7-day programmable t-stat today on my heat pump.
It seemed to work fine all day but this evening I smelled a creosote
Type smell in the house and attick where the unit is located.

I checked the attick for signs of fire, smoak etc but did not locate
Or see anything suspicious.

Any ideas? could this smell be related to t-stat?

Is there operation test code that can be entered into the unit for
Operation check ?

Please advise?

Thank you, SteveH

[KC13]

Was your old thermostat malfunctioning? Perhaps the system is activating auxiliary heaters that have been unused for some time, and dust is burning off the strings. I hope this is the case... D.I.Y. HVAC is risky business.