Atwood Furnace Squeal. Where to add oil, and how severe is the problem?

Topic: Atwood Furnace Squeal. Where to add oil, and how severe is the problem? (Read 3997 times) previous topic - next topic

Re: Atwood Furnace Squeal. Where to add oil, and how severe is the problem?

Reply #25 – December 01, 2017, 01:11:20 am

Speaking of Atwood furnaces: My front one is fine, but the back one will not start. I suspect it might be the circuit board. The problem is I am pretty sure the back one is the one that warms the basement.

I think I will go ahead and buy a dinosaur board for the rear furnace. It would be nice if they both used the same one; I could just move the front to the rear and see if it starts. Then my dinosaur would work for either one of them as a spare.

Anyone know if the same circuit board is used on the front and rear Atwood furnaces on a 40' U295? I do remember that the front one is quite a bit larger than the rear one (I think).

Thanks,

Trent

Re: Atwood Furnace Squeal. Where to add oil, and how severe is the problem?

Reply #26 – December 01, 2017, 02:21:53 am

They do not sell to the general public. I have received support for what board to use over the phone from them.
I like their quality and improvement over factory boards. Oregon based company.
Dinosaur customer service page

Re: Atwood Furnace Squeal. Where to add oil, and how severe is the problem?

Reply #27 – December 01, 2017, 08:02:51 am

Quote from: TulsaTrent – December 01, 2017, 01:11:20 am

Anyone know if the same circuit circuit board is used on the front and rear Atwood furnaces on a 40' U295? I do remember that the front one is quite a bit larger than the rear one (I think).

I think the best thing to do is open the furnace, and pull out the circuit board, and search for one with the same model number. If it's similar to mine (Hydro Flame 8535-IV - and from the videos I watch they are all quite similar), all you do is take out off the cover (2 screws), undo 1 wing nut at the top of the circuit board holding it in place, pull the 2 or 3 wires attached to the board, and it slides right out.

Re: Atwood Furnace Squeal. Where to add oil, and how severe is the problem?

Reply #28 – December 01, 2017, 08:58:38 am

Quote from: TulsaTrent – December 01, 2017, 01:11:20 am

Anyone know if the same circuit circuit board is used on the front and rear Atwood furnaces on a 40' U295?

Trent,

This information is readily available. Surprisingly, you can find the circuit board model numbers in the Atwood furnace manual. See the note on circuit boards on page 23 (Circuit Boards), and circuit board model numbers on page 46 (Part Reference - Circuit Board).

http://bryantrv.com/docs2/docs/hflamefurn04.pdf

According to the above referenced manual, all 85-IV furnace models (16,20,25,30,35) use the same circuit board: Atwood part 36716

If you wish to replace the Atwood part with a Dinosaur Electronics board, see the cross-over chart below:

http://www.dinosaurelectronics.com/UIB_Chart.htm

UIB S page

Re: Atwood Furnace Squeal. Where to add oil, and how severe is the problem?

Reply #29 – December 02, 2017, 07:18:35 pm

I replaced my Atwoods with the new 2-stage version a couple of years ago. Have a working (when pulled) controller board if anybody wants it.

see ya
ken

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Re: Atwood Furnace Squeal. Where to add oil, and how severe is the problem?

Reply #25 – December 01, 2017, 01:11:20 am

Re: Atwood Furnace Squeal. Where to add oil, and how severe is the problem?

Reply #26 – December 01, 2017, 02:21:53 am

Re: Atwood Furnace Squeal. Where to add oil, and how severe is the problem?

Reply #27 – December 01, 2017, 08:02:51 am

Re: Atwood Furnace Squeal. Where to add oil, and how severe is the problem?

Reply #28 – December 01, 2017, 08:58:38 am

Re: Atwood Furnace Squeal. Where to add oil, and how severe is the problem?

Reply #29 – December 02, 2017, 07:18:35 pm

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