Model #DGAA077BDTA COLEMAN Furnace/Heater, Gas

  • Cabinet Parts
    3 Results
Find part by diagram >

Question and Answers

Q:

lp furnace ignites 10 seconds later flame drops out checkin outlet on gas 9.7 wic whole time perplexed DGAA077BDTA Coleman Furnace

Q:

Coleman Furnace Motor Issues?

A:

The motor problem with the furnace is concerning. I did do some research but was not able to find an answer for the problem. Your expert will be able to help give you a detailed answer. It may take 24-48 hours. I do hope that everything works out.

Read More
Marc -
July 23, 2012
A:

Thank you for your question. A lot of what you ask depends on which motor we are talking about. Is the noise coming from the air conditioner outside, or the furnace inside? A furnace fan motor is very simple to change. If we are talking about the outdoor air conditioner, we need to determine if the noise is coming from the compressor or the fan motor. Again, the fan motor is an easy replacement. If the noise is coming from the compressor and it is the compressor that is locking up, then no, you would not be able to complete the repair on your own.

Compressor replacements are only able to completed by those that are licensed to handle refrigerants as well as being well versed with brazing and having the proper refrigeration equipment.

Did the sound come from the outdoor unit and did it sound like a loud grinding noise that progressively got worse followed by a thud and the sound of swishing?

Read More
Andrew D -
Sears Technician
July 23, 2012
A:

The sound was definitely from the indoor furnace unit motor area. How do I tell if it is the motor or a bad capacitor? Do I need to replace both or any other components if it is truly the motor? Logan

Read More
Logan -
July 23, 2012
A:

If the sound is coming from the motor, first turn off the power to the furnace and remove the furnace doors. Once the doors have been removed, you can shine a flashlight into the blower housing and even reach your hand inside the blower housing. Again, make sure that the power is off when you do this. Check for anything that could be getting the blower wheel caught. If there is nothing there, then it is definitely the blower and any time you replace the motor, the capacitor needs to be replaced as well.

If the capacitor was bad, the motor would not turn on at all on its own.

Read More
Andrew D -
Sears Technician
July 23, 2012
A:

I also wanted to mention that should should spin the wheel while power is off. If the wheel is wobbly at all, then the wheel will have to be replaced as well. Hopefully no damage was done to the wheel or the housing.

Read More
Andrew D -
Sears Technician
July 23, 2012
A:

If it was the capacitor would I have heard the noise it did? The blower wheel does turn freely and there are no obstructions. When I turn the furnace to off and the vent/fan on there is no noise at all from the motor. Can the motor completely seize where you would not hear a hum at all? How hard to replace the motor and compacitor? Thanks for the help, I really appreciate it. Logan

Read More
Logan -
July 23, 2012
A:

Having a hard time finding a place that has both the blower motor as well as the capacitor to purchase. It appears the capacitor is not being manufactured anymore. Any suggestions?

Read More
Logan -
July 23, 2012
A:

Yes, the motor can completely seize where it does not turn at all. It is a very common failure. The part number for the blower motor is S1-02435603000. The part number for the capacitor is STD377407. That is a 7.5mfd 440VAC capacitor.

The motor and capacitor are very easy to replace. If you decide the order the parts yourself and need a walk through of replacing the blower motor, let me know and I will give you a quick rundown of how to do it.

Read More
Andrew D -
Sears Technician
July 24, 2012
A:

New motor and capacitor arrived and it was easy to replace. Now the motor runs fine but the blower wheel and motor will not shut off and I am getting a 4 blink flash code that references "Limit Switch Open". What does this code mean and is it something that I can fix? Thanks Logan

Read More
Logan -
July 29, 2012
A:

That error code should only come up in heating mode when the hi limit temperature switch is open or there is a problem in the low voltage circuit of the furnace. The switch is an auto reset meaning once it cools down, it resets on its own. Are you trying to run the system in heat or cooling mode? It could also mean that something isn't wired right. I attached a wiring diagram of the unit. Follow it and make sure nothing is miswired. If you don't feel comfortable, I would suggest having a tech take a look at the unit.

Read More
Andrew D -
Sears Technician
July 30, 2012
See more answers

Top Parts