...and don't seem to have power. The furnace is working correctly other than not having power at the "HUM" screws. Is there anything I can try before calling a professional to replace the circuit board ...
...open. If I hook those wires directly to the selnoid valve it does open. (So it does work) The only humidity/temp sensor seems to be part of the controller in back or the board and in the air duct. ...
...yourself make sure that is a 24VAC some solenoid are 120VAC and they look the same. to see if your humidifier is working you can short the 2 control wires coming from the humidifier I think the
...installed on my 90k hi eff furnace (new last year). I keep hearing a hi pitched whistle when the humidifier goes on. Trying to get the HVAC guy back - but he's busy installing and fixing furnaces
When I turn on the humidifier it shuts off the furnace The furnace only shuts off when humidity drops to the level that the humidifier has to turn on. some one has the humidifier hooked up to the R ...
Function of HUM terminal on 1Source Panel Can someone please explain what the HUM terminal does on a 1Source panel? I measured ~120V from it, however, was wondering if it only gives 120V when the ...
Instructions manual seems to imply that two 24 Vac (10VA) transformers are required if the HUM or ECA terminal is used to power the automatic digital control. HUM or ECA terminals are 120 volts. The ...
...connected to a 24Vac transformer that is continuously on, and W/G, Cf terminals are connected to HUM via a 24 Vac transformer. Why does the control unit need two inputs, or does it mean that ...
...to the HVAC system EAC terminals - however my Honeywell 1505 board only has 1 EAC terminal and 1 HUM terminal as well as 3 unused 'N' terminals. I assume these terminals are 120VAC but not certain ...
...a new Lennox G61MP furnace and the technitions failed to reconnect the wiring that powers the humidifier. Need wiring schematic. Does humidifier transformer get its power from the circut that ...
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