Faulty control switch
John C. • Stone Mountain, GA • November 17, 2014
Appliance: Model HONEYWELL HZ617
My Repair & Advice
Replaced it with the 4 position switch..The original switch was a 3 position switch..By replacing it with a 4 position switch, I now have a bit more control of the heater, to the extent that it is now more quiet in the low mode than before. The only issue I had, was the stem which was slotted, while my stem was a "D" type stem. So I did a little filing and cutting until I got a perfect tight fit on the knob..The unit, now functions perfect, IMHO.