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Old 11-28-2018, 09:28 AM   #1
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Furnace fuse

Hello.
Replaced furnace control board
[Suburban 30k btu] in my 2011 Keystone Cougar 318SAB. When reconnection the hot, ground and thermostat wires, live wire touched the duct work, sparked and now no power.
Probably burned out a fuse. Go to breaker /fuse panel. I find no reference to a furnace breaker or fuse in that box. Pull fuses, all appear good, little red led at each fuse location turns on when fuse removed. Goes out when fuse reinstalled.
I'm guessing furnace fuse is elsewhere.
Anyone have any idea of where that fuse is located?
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Old 11-28-2018, 01:00 PM   #2
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I don't know what thermostat you have but my Coleman Mack has a small 2 amp fuse in it. Pop the cover off, remove the fuse and check it for continuity.

Sorry but I also have to ask; is the switch on the thermostat in the HEAT position?
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Old 11-28-2018, 06:28 PM   #3
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What MODEL is that 30K furnace...SF, NT etc?


Check the On/Off switch that is located on furnace frame..
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Old 11-28-2018, 08:59 PM   #4
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I have a fuse for the furnace accessible under the refer. It’s an in line type fuse.
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