u/SomePen7659

▲ 2 r/thermostats+2 crossposts

Thermostat won’t turn on (Ecobee3)

Hi all,

A few days ago, my thermostat, ecobee3, just went dark. I turned off the breakers and the switch next to the furnace, turn them back on, but I got nothing. I took a multimeter to the wires and I was getting 26 volts. I had a chat session with ecobee where they had me manually connect two of the wires and the fan came on and as soon as I took them apart, the fan would stop. They determined that the ecobee unit itself was broken. I have also replaced the 3 amp fuse on the furnace. I opened the AC unit to look at the drain pan and it’s dry.

I ended up buying another ecobee and when I put it in, I have the exact same result, no power to the thermostat.

Aside from calling a pro what else can I look at?

Rcf2417stamca and r802pa075417msa are the model numbers of the ac and furnace.

Thanks

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u/SomePen7659 — 2 days ago