Question about Coleman Propane Forced Air Heater w/Electronic Ignition (50,000-80,000 BTU)

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My Heater Sparks and shoots out smoke

I have a Coleman-Evcon heater for a 1999 mobile home. I just turned on the heat about 1 am yesterday morning, and it would not shut off. I had to throw the breaker to get it turn off. Then it blows out cold air all of a sudden. Now when it got turned on it sparked like it was going to catch on fire and a pillow of black smoke with something that smelled like it was fried came out. Can you help

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Most likeley a bad transformer. Shut off the breaker, then remove the cover of the box containing the transformer & circuit board. If the transformer is bad, it will look and smell burnt. Mark the wires before you disconnect it, so you know how to connect the replacement. Then remove the bad transformer and bring it to a heating & AC parts store so they can match up a replacement part for you.

Posted on Dec 30, 2008


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My Coleman Evcon furnace blows cold air even when the unit is turned off. How do I stop it from doing that?

Hello Rhonda Killalea,

On MOST furnaces built since 1960. there is provision
for the BLOWER on the old type THERMOSTATS.

BLOWER SWITCH ... has two positions

"ON" and "AUTO"...
(turn blower from on to "OFF" (or correct wiring)).

"AUTO" is the POSITION your thermostat NEEDS
to be on...

Only then will your heater's blower be under
control of those internal temperature controls.

I am including a SAMPLE page from the OWNER's
MANUAL... (a wild guess of which "EVCON" model
you might have)...

Without YOUR MODEL NUMBER... your answers
are going to be completely generic (pretty useless).

You will also need to disclose what model
THERMOSTAT you are using... while you are

Try to note the FUEL you are using, HEATING

ELSE... my only suggestion would be to look
at the WIRES... note their color and CREATE
a TRUTH TABLE between the "typical" R,G,Y,& B
wires ( telephone wires ) and the ACTUAL
SCREW-TERMINAL designations...
Black, Brown, Red, Orange, Yellow, Green, Blue,
Purple, Gray & White... industry colors for
the possible TERMINAL designations... (and more)

Go to the HEATER (air-handler or compressor)
terminal block and VERIFY .... The OLD FASHION
Red, White, Black and Green have a TERMINAL
MATCH from the thermostat to the HEATER.

Hope this helps...

Carnac the Magnificent

Evcon EB SERIES Owner Manual Page 2

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1 Answer

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one post only,please delete copied posts,

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NO you cannot. I also advise you to completely disconnect all power to it until ready to do the work, you may cause a fire otherwise. Be safe.

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1 Answer

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Hi, I would just make sure you have power to the furnace. Check breakers or look for the power switch on the electrical box. Also, some mobile homes have a wall switch that cuts power to the furnace.

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It should have a two part chimmney with a 4 inch inner exhaust section and a larger 6 inch outer section that goes over the flange on the top of the furnace. If your existing chimmney does not have this you may have to buy a chimmney kit for a mobile home application.

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