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You are here: Experts > Autos > Trucks > RV Repair > Suburban Furnace
Expert: Bill Gibbs
Date: 3/26/2008
Subject: Suburban Furnace
Question
I was cleaning Suburban Frnace model# NT24S.......the wires were not wire-nutted together tight... the wires came apart. I have 1 black and 1 white Incoming power........1 red and 1 white thermostat wires and the wires to the furnace are 2 blue ...1 red....1 yellow.
Could you please tell me how they should be wired.......There was originally 3 separate connections......But while cleaning the wires came undone from wire nuts.......
Also original problem started with an old thermostat....I changed with a universal from a RV supply company.....Furnace would start (Light) about every 4th try...then go out and not start again until I shut off and started over after a 5 minute wait..will not cycle on off as supposed to....any help would be greatly appreciated thank you for your time
Wayne alldredge
1224 Haylie lane
Tooele , Utah 84074
Furnace: Suburban
Model # : NT 24S
Code # : BGV K
Manifold Pressure : 10 0
Input BTU : 24000
Orifice Size: 54
Serial # : 1641313
Wires Involved
Incoming (main) 1 Black
1 White
Thermostat : 1 Red
1 White
Furnace Wires: 2 Blue (does it matter which blue one when connecting)
1 red
1 Yellow
Answer
Wayne, This is simple. There will be 4 wires that need to be connected. The red wire from the furnace is the positive 12 volt wire, the yellow wire is the negative 12 volt wire, the 2 blue wires go to the thermostat and it doesn't matter which way they are connected. The T-Stat only completes the circuit. Your incoming main goes to the red and the white to the yellow and so on. I hope that this helps, Bill
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