Question about Coleman Heating & Cooling

1 Answer

The other day I received a series of tests to perform on our Coleman EB20B electric central heater. A while back I replaced the sequencer. I may not have replaced each wire on the appropriate spade connector. The sequencer is a double stack. Each stack works two heating elements. The fan works with the thermostat switch on fan and the H/C switch on off. But nothing works with the fan switch on auto and the H/C switch on H. Is there a way I can be sure the wiring is correct? We have a schematic for the heater including the sequencer. Our diagram shows letter/numbers at each connector on the sequencer, but the replacement sequencer didn't have the letter/numbers.

Posted by on

  • Kenneth Rohm Nov 13, 2009

    Thanks again for your great help Charlymonty.


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 3,741 Answers

the wiring diagram instructions are given step by step on the link below with proper color details for each wire so that you can check the wirings accordingly.the link is given below:---
click the link and see the wiring details color wise .---- This will help. Thanks please keep updated.please do rate the solution positively .thank you for using fixya.

Posted on Nov 13, 2009

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Model #EB20B. Why does the blower run constantly?

Continuous blower operation could have been a user selection. Some thermostats allow this.

Aug 03, 2015 | Coleman Heating & Cooling

1 Answer

Coleman evcon EB15A heat is stuck on. Thermostat disconnected to make sure it wasn't the issue. Stays on and heat blowing. What can I try?

It sound like your first stage sequencer is stuck in the 'on' position Shad. Usually the first stage is responsible for turning on the blower on low speed while energizing the first 5 kw of electric heat.

The problem you describe is typical of 'stuck' contacts within the sequencer.

No field service to the sequencer, replacement is necessary. Of course without actually seeing your furnace, this is just a resonably educated guess.

Apr 15, 2015 | Coleman Heating & Cooling

1 Answer

Eb20b/ electric furnance/ blower wont shut-off after heat kicks out, got to kill breaker , runs all the time, installed new thermostat, no change?????? Its cold??????

Check the thermostat and make sure the fan switch is set on "Auto". If it is set on "ON" the blower will run constantly.

Jan 31, 2015 | Heating & Cooling

1 Answer

I have a coleman central electric furnace model 3400-815 and a wire that connects the sequencer to the element burnt out. I'm not sure what caused the burn out so I don't know which part needs to...

The wire was probably loose on the terminal. This is very typical. Replace the wire end with a new spade clip. Make sure it pushes on to the terminal real good and tight and you probably won't have another problem.

May 14, 2011 | Heating & Cooling

2 Answers

I have a coleman evcon electric furnace ,it was running and would not cutoff the heat got up to around 90 thhe thermostad said it was running in aux ,so I turn the main breaker off and the in a few minute...

If the thermostat is ok which it probably is then your sequencer is most likely stuck i would say. You could verify that by removing 24 volts to the sequencer to see if it will shut down the heater
themobilian_598.jpg When low voltage from the thermostat is applied at the base of this sequencer it heats a bi-metal and turns on each coil and fan in a sequence that will insure the breaker don't throw from the power surge AND warm air comes out the vents when that fan comes on. I would start there.

Dec 28, 2010 | Coleman Heating & Cooling

1 Answer

Need wiring diagram ,colman central electric furnace 3500a816

I have the diagram pasted to the cover over the sequencer. I only have a 5 megapixel camera, but I am willing to try and get a picture of it if it will help.

Nov 03, 2010 | Coleman Heating & Cooling

1 Answer

When we turn on the central air there is a strong burning burnt toast but way stronger. IS it safe to remian in the house?

Is your central air furnace or electric heat. Electric furnace sometimes have electric strip sequencer stick in the closed positions leaving on one strip of the electric heat. Get a service tech as soon as possible to check this out. Any smells from a central unit need to be teken care of promptly. TURN OFF unit you have it checked for your safety. Rus

Jun 28, 2009 | Coleman Heating & Cooling

Not finding what you are looking for?
Heating & Cooling Logo

Related Topics:

46 people viewed this question

Ask a Question

Usually answered in minutes!

Top Coleman Heating & Cooling Experts

Bill Long

Level 3 Expert

587 Answers


Level 3 Expert

2461 Answers

Dan Webster
Dan Webster

Level 3 Expert

8220 Answers

Are you a Coleman Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides