Re: Honeywell 220a 1019 whole house humidifier. We installed the Honeywell humidifier a year ago & it works great. We replaced our furnace 3 mo. ago, and I'm now wiring the electrical for the humidifier. Do I want the low a.c. voltage transformer to be on all the time, thereby controlled only by the humidistat on the plentum, or do I want the transformer to come on & off with the furnace. My new furnace is a 95% Goodman, and the d.c. fan is programmed to stay on (low) all the time to keep the air circulating. Right now I have the low a.c. output transformer on all the time, and it seems to be working just fine. Also, where do I likely want the humidity percentage set at (Minneapolis, 71 degrees, forced air)? Your help is appreciated! Mike

SOURCE: Humidistat installation question

I suppose you are looking at the do-it-yourself model. Depending on the wire that is run up to you Regular Thermostat from your furnace. You may have to run a seperate line for the Humidistat. A digital thermostat that does Humidity and Temperature is recommended. Or you could just place a Humidistat near the furnace room. A wiring diagram will come with the Humidifier discribing the different ways to wire it.

SOURCE: Wiring issue with the Honeywell HE360A Humidifier

Maybe I can help. this is 24v so it doestn't matter which wire goes where so here goes. 2 wires from humidistat go to furnace, split one of the wires(not both) so they reach the yellow wires on the humidifier. with marettsconnect one of the split wires to one of the yellow wires. do the same to the other split wire and yellow wire. what you should get is one wire from humidistat to furnace then one wire from humidifier to humidistat and one from humidifier to furnace. hope this helps

SOURCE: humidifier doesn't stop

I had the same problem if you dissasemble the unit you will probably find a capacitor between two blue wires has blown out

SOURCE: I've installed a Honeywell 220A whole house

push sail switch forward by hand to see if that is the problem.
Remove two wires at humidifier and connect them if it starts than it is in wiring, humidistat, or transformer.

SOURCE: i just finished hooking up my new he 220a HUMIDIFIER

I have a HE220, HE 260 humidifier..by pass, flow thru. There is no water flow between the hot water tank and the humidifer. The water valve is on. Is there an inexpensive part I can replace myself first before calling a plumbing contractor?