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Old 11-13-2011, 10:10 PM   #1
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1967 30' Sovereign
1977 31' Sovereign
1988 29' Excella
Abilene , Texas
Join Date: Aug 2010
Posts: 73
1988 Suburban Furnace

I am finally getting around to testing the furnace in our '88. All other LP appliances are in perfect working order. I turn the thermostat to on and set it to 90 degrees. The blower turns on almost instantly and then I hear a click every 10-13 seconds for three times and then no more clicking. I am use to the fridge and water heater clicking a lot and quickly so my first question is this behavior correct? I am assuming it is trying to light, doesn't light, and finally stops trying after 3 attempts.

Also I don't have a manual and am not sure which way is on/open on the manual valve. Should the flat portion of the valve be pointing vertical or horizontal?

Any advice would be greatly appreciated as this is my first RV furnace. We've used our heat pump in the past, but would like to use the furnace while boondocking this winter.

'67, '77, & '88 Restoration Projects
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Old 11-13-2011, 11:08 PM   #2
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Western , Washington
Join Date: Jun 2006
Posts: 60
suburan furnace

hi, open front cover to furnace, disconnect the two electrical connection of the'ovel' shaped iginator,it has two phillips screws, carefully with draw and also rotate 90 degrees , ignitors should be coated with carbon which you will carefully brush off with a wire brush. be carefull not to bend probes, reassemble in reverse order and reconnect two electrical connection, i did this once last winter season and last week for the start of this season of boondocking, have fun, jeff

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Old 11-13-2011, 11:30 PM   #3
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1974 Argosy 20
2014 20' Flying Cloud
Kooskia , Idaho
Join Date: Jul 2009
Posts: 4,591
Try the gas valve in the other position, maybe that is your issue. Yes, recent Suburban furnaces have a 3 times and out lockout system.
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