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Can't get humidifier to work with Ecobee3

therivieratheriviera Member
edited November 2017 in ecobee

Hi -

My home is new construction. Furnace is York, Humidfier is Honeywell HM700. We have 2 zones - one upstairs (zone 1), one downstairs (zone 2).

I'm getting a blinking yellow light error (3 times, which means there is no current to humidifier unit) on the humidifier. I spent a while on the phone with Ecobee and as far as they can tell, wiring is correct. However, they think that because the humidifier is not wired directly to the ecobee (rather it goes through the furnace) the ecobee cannot call for the humidifer.

We are in a small town and there is only 1 guy that knows how to install humidifiers and he's out of town. Would appreciate any help we can get!

Here are pictures of the wiring:
This is where the humidifier R/HUM connects to the furnace control board (yellow wire, goes to R on furnace control)

HUM from Honewell humidifer (blue) is wired to this yellow wire, which goes to Ecobee Zone 2.

Furnace control board to Ecobee Zone 1 and 2:

Humidifier wiring:


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