Question about Honeywell HE360A1027 Whole House Humidifier Humidifier
This is my second HE360A in last 2 years that has stopped working after only 1 year in service. Control seems to be working fine but it looks like some internal fuse is blown. I checked the power and unit is powered on.
I also had the transformer problem and it was made worse but an HVAC guy who rewired the furance fan to get more air flow when he installed a new AC unit. He left the humidifier wired to the old fan windings which were now putting out 160 induced volts. The humidifier transformer, which was already undersized by Honeywell, never had a chance. Not sure how common this problem is but I later saw several references to the same problem on other websites and it's worth a quick check of the supply voltage to your humidifier.
Since I had an expensive humidifier and a whole cut in the furnace duct, I looked for a fix. My solution was to buy a $15 transformer from a BigBox that matched the voltage and was oversize on amps and mounted it externally to the humdifier (much like a furnace transformer is typically mounted). I then completely removed the piece-of-junk humidifier circuit board and wired the transformer directly to the water solenoid which it controlled and wired the fan and new transformer directly to 120V that is controlled by a current sensing relay (Aprilaire A50) on the furnace fan wires (and also controlled by a humidistat located on return air plenum).
It has worked fine for two years now, runs only when the fan is on and when the humidistat is asking for more humidity. A relatively cheap fix that would have only taken an hour if I had done it right from the start.
For those of you who haven't bought the Honeywell 360A yet - don't. For those of you like me that spent the money and cut holes in your duct - this is one solution.
Maybe Honeywell will wise up and redesign their transformer PCB to be much more robust. The rest of the unit is a pretty good design.
Posted on Nov 21, 2009
I had the same problem. 2 transformers died in 5 years. Honeywell won't admit there is a problem. Transiant problem?....I don't think so. All my other electronic devices work just fine and they are more sensitive that a transformer.
Solution: Remove the transformer from the internal circuit board ( cut the 4 transformer connections on the circuit board). Go to Home Depot or any harrdware store and buy a 110/24vac transformer for about $15. Mount it externally in a conduit box and wire the 24 volt side to the unused red wires on the front of your humidifier. These wires go the the same point where the transformer output was. The 110 volt side of the transformer goes to the switched output from your furnace. You will still need to plug the original plug in as the humidifier motor runs on 110 volts. This should solve your problem. I plan to pass on Honeywell procucts in the future.
By the way, their phone support is a joke. Women ( they call technicians) reading from a computer screen.
Posted on Dec 12, 2009
As I posted previously, my HE360A was'nt working. Fan seemed to working fine, but no water was flowing or being told to flow to filter. Idea! It looks like Honeywell has changed the type or something like that. The Valve No. on the old unit 1 year old was, 0305. The new valve No. is 2308 but with all the same specifics, voltage, etc. Maybe they realized the issues and had the solonoid valve supplier make a change. We will see. I just installed the new one and WOW, it works. Again, we will see.
Posted on Nov 30, 2008
I have the same problem with the transformer. Actually I had 2 of them replaced already. Could anyone tell what would be a substitute transformer and where to buy it? Thank you in advance.
Posted on Oct 28, 2008
Bob976 is right on. I pulled my unit last night to debug it and found the same issue with the transformer. Was browsing the web to confirm it and found these posts, this looks like something that should be recalled.
Posted on Oct 27, 2008
I found the problem with my unit and also the unit that it replaced. It is the low-reliability, chinese transformer that you will find on the pc board that is inside the fan housing. In both cases, there is 120v to the primary side and zero to the secondary (24vac) side. On the new unity, it was dead right out of the box. Replacement, pc board-mount transformers are readily available and that is the solution.
Posted on Feb 21, 2008
Tips for a great answer:
Oct 24, 2017 | Aprilaire Humidifiers
Jun 21, 2011 | Hunter 34357 Humidifier
Apr 03, 2010 | Honeywell HE360A1027 Whole House...
Feb 01, 2009 | Honeywell HE360A1027 Whole House...
Jan 31, 2009 | Honeywell HE360A1027 Whole House...
Nov 27, 2008 | Aprilaire 700 Humidifier
Jul 11, 2017 | Honeywell HE360A1027 Whole House...
Jan 09, 2014 | Honeywell HE360A1027 Whole House...
1,454 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: