I have a Burnham gas furnace, put in new home in 1994. I have three zones for heat, one for each floor. THe second floor has no heat no matter what the thermostat (HOneywell) is set at.
I changed the zone head but still no heat. I am thinking about changing the thermostat on the bedroom wall next. Am I going in the right direction? COuld it be something I am overlooking?
The rest of the house heats up nicely.
Thanks in advance...
Ginger

If you suspect that the thermostat has failed, try bypassing it by connecting the heating circuit wires together directly. If the heat starts working, your suspicions are likely correct.

Are you talking about wires on the zone head? What color are those wires? Thanks.

No, the wires at the thermostat. Typically connected to r and w.

Thanks. I will try tomorrow. I'll be back on the site if this doesn't work.