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I have a colman electric furnace eb15b it had a/c.i am using it as a furnance only.i used the white red wire for thermostate.it works but not great.blows hot for a short time.then warm only.takes a long time to heat the house.

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  • sloeridre May 11, 2010

    what kind of thermostat do you have? Could be the sequencer for your heatstrips is failing. How many k/w's ? Does it have a sequencer or contactor?

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You need to make sure that both sides of the heat kit are coming on. One of the heating elements could be bad. Turn the power off and remove the heat kit. Check and see if there are any visible breaks on it. Also, when the unit is running, take a volt meter and check for voltage to the heat kit. You can also do a continuity check to see if the heating elements are good. Good luck.

Posted on Mar 16, 2009

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No fan when ac kicks on Ihave a eb15b funace with a coleman ac


The heat will normally use a low speed on the fan, & the AC along with the fan switch on the thermostat will use the high speed. The thermostat turns that high speed on when there is a call for cooling & is the same switch if you were to manually turn the fan from auto to on. Try turning the fan on @ the thermostat. If it works, then replace your thermostat. If it doesn't, it could be a bad fan speed, a bad fan relay on a control board or external relay, or a loose or broken green thermostat wire.

Apr 14, 2014 | Coleman Home Electric Furnace Eb15b/Eb15d

1 Answer

AC and fan work fine can't get burner to come on


Open the furnace, access the control wires going to the thermostat & jumper the white & red wires to bypass the thermostat. the control wires should consist of Red, white, green, yellow, or blue.

Dec 06, 2013 | Goodman Heating & Cooling

1 Answer

Convert coleman eb15b to natural gas unit


Sorry there is no way to convert it to a gas unit.. The only way is to replace the furnace with a natural gas unit. You will need a gas line ran to it and a Flue. and then room to fit everything in that space.

Nov 10, 2013 | Coleman Home Electric Furnace Eb15b/Eb15d

1 Answer

I have a HoneywelI Enviracare Elite whole house humidifier. I have no power to the thermostat. The wire goes into the furnace and is attached to a control board. The furnace is working. Humidifer is n


Most of the humidifiers are run by 24 volts AC. disconnect the power wire to stat on circuit board and check there with meter and connect to low voltage ground for 24 volts, I'm assuming the two wires that power the humidistat are red and white.typically red is used for power. most likely you have power if the red for the stat is connected to the W on the board and the heat works, but the humidifier only works while heat is on.the next thing in line is the humidistat , it's a switch so if there is only two wires going to it take them off the stat and connect together, if furnace is on heat and running and stat wires are connected it will send power to water solenoid, if its not working yet the problem lies in the water solenoid if you have 24 volts at the two wires at solenoid.check while disconnected, do not connect those two wires together or a 3 amp fuse will blow on the furnace board. if you have 24 volts there then the valve may be bad or the valve may be stuck or clogged, loosen water supply line to make sure water is getting to valve. I spent many years working in the HVAC industry.

Dec 31, 2011 | Honeywell Humidifiers

1 Answer

How do u wire athermostat to the furnance and ac unit on model e3eb-015h nordyne


You need to get low voltage wire known as 5 wire. run wires thru wall to stat and furnace Red wire goes to R terminal white to W terminal Green to G terminal Yellow to Y terminal on both the stat and furnace circuit board. Now you need a wire called 2 wire low voltage wire run that from furnace circuit board to outside A/C. At furnace hook red wire to Y terminal and white to C terminal doesnt matter which ones you hook up at outside unit. Do it just like i told you this will work properly.
If this helps please rate me.

May 20, 2011 | Heating & Cooling

1 Answer

I have a RUUD Furnance with a piolet light. There


If you have a pilot, then this is an older furnace. Most of them use a 2 wire thermostat. Allot of the new digital, programmable thermostats require a 3rd wire - a common to the thermostat. Allot of old furnaces do not have a common terminal on the furnace board. It can be done, but takes a good technician. The way around this is to use a digital, programmable thermostat that will operate on straight battery. It will be stated on the thermostat package, saying it will operate with a common wire from the furnace or with only the use of the batteries.
Then make sure that you hook up the 2 wires to the "R" terminal and one wire to the "W" terminal, it doesn't matter which thermostat wire goes to which terminal.
Note: If you have a air conditioner installed, it will be a different story.
Sincerely,
Good Luck,
Paul Gibson

Mar 31, 2010 | Heating & Cooling

1 Answer

I have a travel trailer with a roof top a/c colman mach111 and I hooked up a thermostate digital. The heat works but cant get a/c to come on. the termanials on hunter thermostate are G W Y RC RH


OK, the wiring that you should have in your RV is as follows: Red White Blue Yellow Green Gray.

This Thermostat will not work on this Air conditioner because the tstat you are installing is a 24V thermostat. The connections are as follows G = Fan, W = White, Y = Cooling, RC = 24V Cool, RH = 24V. The only thing that I can think to do is hook it up like so.

On the G Terminal, Hook up the Green wire from the wall. On W, hook up the White wire, Y, hook up the yellow wire. RC = run a jumper from the RH terminal, RH = hook up the red wire. If this doesn't work then you will have to go back with the coleman thermostat.

Jul 03, 2009 | Heating & Cooling

1 Answer

Disconnecting green wire from thermostate did allow furnace to run properly but every time I want to switch back to heatpump I must reconnect green wire again.Here is how wires are connected to...


Try this.

A T-stat.

Orange = O
Red = R (with existing jumper)
Black = C
Yellow = Y
White =W1 (Or AUG)
Green =G

At airhandler/furnace.

Green = blower wire (usually green, double check with schematic)
(Green should not go to the HP.)
Orange to HP
Red to red and to HP
black to blue (or C) and to HP
White to W
Yellow to HP. (It may also go to a "float switch" if installed. but that will just be a safety switch on the drain pan in case the line clogs and it overflows.)

The green is typically used for the blower motor. (furnace only)

The orange is used for the reversing valve. (changes from AC to heat, is located in the HP only)

Blue is typically used for common (or "C") but they may have changed it to black due to a broken wire, or other problems.

The only wires going to the HP should be
Red
Blue/black
orange
yellow

Orange should not be going to the furnace at all.

HP wiring should be
Orange to orange or O
Red to R or red
Blue/black to blue or C
Yellow to Y

Dec 09, 2008 | Heating & Cooling

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