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Open Roads Forum  >  Class A Motorhomes  >  Maintenance Issues & Tips

 > Atwood 8535 heater

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england

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Posted: 11/20/20 06:28am Link  |  Quote  |  Print  |  Notify Moderator

Hi all,Attwood 8535-iv dclp heater problem on my rv,the heater will start up(fan going)but is having trouble lighting the furness sometimes it lights then it cuts out and stops,if you look at the circuit board outside next to the heater there is a red warning light on the circuit board that flashes 3 times off and on,any ideas what the problem is.

wanderingaimlessly

SOBOVA

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Posted: 11/20/20 07:11am Link  |  Quote  |  Print  |  Notify Moderator

Maybe a search online for a troubleshooting guide, or this overall atwood guide which includes other appliances Atwood

Also a check on you tube will give quite a bit of info on troubleshooting those units.
Good luck.

enblethen

Moses Lake, WA

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Posted: 11/20/20 08:19am Link  |  Quote  |  Print  |  Notify Moderator

Clean the contacts on the circuit board with a white pencil eraser
Clean the electrode/flame sensor. make sure it is adjusted correctly.
Clean the burner area.
If running off battery, insure it is charged


Bud
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2oldman

Mecca

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Posted: 11/20/20 08:35am Link  |  Quote  |  Print  |  Notify Moderator

Your Betty Furness may be on its way out.

Old-Biscuit

Verde Valley

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Posted: 11/20/20 10:27am Link  |  Quote  |  Print  |  Notify Moderator

RED LED Flashing 3X....Ignition Lockout Error Code

Circuit board WET?
Dry it using Hair Dryer...then try again
If it works you might want to consider a Relocation Kit
(Atwood KIT includes a NEW circuit Board WITH a plastic Bracket that lifts circuit board up....make your own bracket)

Relocation Kit...circuit board is generi........rnaces/7900 thru 8900 AFS, AFM, AFL, etc

If not WET....circuit board is at fault
Dinosaur Electronics Fan50Plus Circuit board for replacement
Better quality circuit board

Dino Fan50Plus


Is it time for your medication or mine?


2007 DODGE 3500 QC SRW 5.9L CTD In-Bed 'quiet gen'
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Bird Freak

Dallas Ga.

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Posted: 11/20/20 05:17pm Link  |  Quote  |  Print  |  Notify Moderator

Mine did the same thing.
Circuit board. Replace it with a Dinosaur. Much better than OEM.


Eddie
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