I have a Heil DC90 Ultra high Efficiency furnace that the fan Results for tempstar dc90 furnace manual Sponsored High Speed Downloads tempstar dc90 furnace manual.

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The fan is working but there is no heat. The Furnace has one of those Honeywell Valves on it and I think it is malfunctioning. I tried to shut off the valve and turn it back on and this worked for a little bit last night but by this morning the valve would not allow the pilot lite to come on. Is there anything I can do to trouble shoot this??

I was told by a repair guy that with the valve tripping out the Heater Exchangers may need replacing or we need a whole new furnace. I think they just need to replace the Honeywell valve box the furnace would run fine. Fansadox Collection 312 on this page. Any thoughts? Before you start dumping money into parts, find a tech to do a system evaluation to find the problem. Sometimes it will cost you more in the long run doing it yourself. I personally get annoyed with people when called to make a repair after a homeowner has been toolin on there system and made things worse.I will assume by your comment that you have never wrenched on your car, mowed your own lawn, tinkered with your computer, or put your hands in an electrical box, because you always leave it to the professionals. I would never want you as my technician and you would never want me as a customer.

The statement you made is outrageous. How about those of us who can't afford to call a professional at $80.00 an hour every time our furnace goes on the fritz. Quick Navigation • Site Areas • • • • • • • Forums • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •.