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Posted: 9/2/2015 8:31:39 PM EDT
[Last Edit: 9/2/2015 9:40:29 PM EDT by sjerdude]
Issue solved, thanks for all the help!!!
Link Posted: 9/2/2015 8:36:07 PM EDT


Why do you need all three? 21 year hvac svc tech here.

Link Posted: 9/2/2015 8:43:03 PM EDT
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Originally Posted By cpl0313:
Why do you need all three? 21 year hvac svc tech here.


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This.  

How do you know those parts are bad?

Also, if its locking out on roll-out you may very well have a cracked heat exchanger.
Link Posted: 9/2/2015 8:47:06 PM EDT


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Originally Posted By prodos8:
This.



How do you know those parts are bad?



Also, if its locking out on roll-out you may very well have a cracked heat exchanger.
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Originally Posted By prodos8:



Originally Posted By cpl0313:

Why do you need all three? 21 year hvac svc tech here.









This.



How do you know those parts are bad?



Also, if its locking out on roll-out you may very well have a cracked heat exchanger.


I'm seeing it as a gaspack with and induced draft setup. Probably a bad ignitor or induced draft motor.
Link Posted: 9/2/2015 8:52:25 PM EDT
[Last Edit: 9/2/2015 8:53:46 PM EDT by sjerdude]
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Originally Posted By cpl0313:

I'm seeing it as a gaspack with and induced draft setup. Probably a bad ignitor or induced draft motor.
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Originally Posted By cpl0313:
Originally Posted By prodos8:
Originally Posted By cpl0313:
Why do you need all three? 21 year hvac svc tech here.




This.

How do you know those parts are bad?

Also, if its locking out on roll-out you may very well have a cracked heat exchanger.

I'm seeing it as a gaspack with and induced draft setup. Probably a bad ignitor or induced draft motor.


Really just need the pressure switch. This winter it would run fine then stop producing heat, but the fan kept running and would not shut off blowing. Pulling the main breaker reset the unit and it would heat again. The coil is clean, and the filters were clean. Also no obstructions in the duct work. Figured I would replace the other parts while I was in there, ( probably not necessary)

Thanks for all the questions!
Link Posted: 9/2/2015 8:56:56 PM EDT
Sounds more like a bad limit. The pressure switch is to ensure the induced draft motor is working.  When you say fan is running, You mean the blower motor not the small induced draft motor, correct?
Link Posted: 9/2/2015 8:57:28 PM EDT
Looks like its new heater time
Link Posted: 9/2/2015 8:59:51 PM EDT

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Originally Posted By rgb03:


Looks like its new heater time
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I wish all my customers had your attitude.

 
Link Posted: 9/2/2015 9:09:00 PM EDT
The unit is made by Armstrong, I've sold this brand for the last 25 yrs for the distributor I work for.
Link Posted: 9/2/2015 9:16:28 PM EDT
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Originally Posted By cpl0313:
Sounds more like a bad limit. The pressure switch is to ensure the induced draft motor is working.  When you say fan is running, You mean the blower motor not the small induced draft motor, correct?
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Correct, the blower motor is running. So, its the pressure switch?
Link Posted: 9/2/2015 9:17:53 PM EDT
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Originally Posted By rgb03:
Looks like its new heater time
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It really is, I know. But need to make it till next spring.
Link Posted: 9/2/2015 9:19:47 PM EDT

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Originally Posted By sjerdude:
Correct, the blower motor is running. So, its the pressure switch?

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Originally Posted By sjerdude:



Originally Posted By cpl0313:

Sounds more like a bad limit. The pressure switch is to ensure the induced draft motor is working.  When you say fan is running, You mean the blower motor not the small induced draft motor, correct?




Correct, the blower motor is running. So, its the pressure switch?

Read my post again.  It sounds like the limit. i know how I'd check it.  Do you own a meter?

 
Link Posted: 9/2/2015 9:22:08 PM EDT
[Last Edit: 9/2/2015 9:23:19 PM EDT by Kennyo1]
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Originally Posted By sjerdude:


Correct, the blower motor is running. So, its the pressure switch?
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Originally Posted By sjerdude:
Originally Posted By cpl0313:
Sounds more like a bad limit. The pressure switch is to ensure the induced draft motor is working.  When you say fan is running, You mean the blower motor not the small induced draft motor, correct?


Correct, the blower motor is running. So, its the pressure switch?

Use a multimeter to check for voltage on each terminal of the pressure switch. Check each one to ground or back to the mistral of the transformer.  If you only have voltage on one terminal the switch is not closed.
The presses switch can be replaced with a generic
Link Posted: 9/2/2015 9:25:07 PM EDT
[Last Edit: 9/2/2015 9:26:08 PM EDT by cpl0313]


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Originally Posted By Kennyo1:
Use a multimeter to check for voltage on each terminal of the pressure switch. Check each one to ground or back to the mistral of the transformer.  If you only have voltage on one terminal the switch is not closed.


The presses switch can be replaced with a generic
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Originally Posted By Kennyo1:





Originally Posted By sjerdude:




Originally Posted By cpl0313:


Sounds more like a bad limit. The pressure switch is to ensure the induced draft motor is working.  When you say fan is running, You mean the blower motor not the small induced draft motor, correct?






Correct, the blower motor is running. So, its the pressure switch?





Use a multimeter to check for voltage on each terminal of the pressure switch. Check each one to ground or back to the mistral of the transformer.  If you only have voltage on one terminal the switch is not closed.


The presses switch can be replaced with a generic
Of the same temp rating.



On edit , I read temp switch. Carry on.
Link Posted: 9/2/2015 9:27:31 PM EDT
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Originally Posted By cpl0313:
Of the same temp rating.

On edit , I read temp switch. Carry on.
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Originally Posted By cpl0313:
Originally Posted By Kennyo1:
Originally Posted By sjerdude:
Originally Posted By cpl0313:
Sounds more like a bad limit. The pressure switch is to ensure the induced draft motor is working.  When you say fan is running, You mean the blower motor not the small induced draft motor, correct?


Correct, the blower motor is running. So, its the pressure switch?

Use a multimeter to check for voltage on each terminal of the pressure switch. Check each one to ground or back to the mistral of the transformer.  If you only have voltage on one terminal the switch is not closed.
The presses switch can be replaced with a generic
Of the same temp rating.

On edit , I read temp switch. Carry on.


I don't have a multimeter, but am willing to just replace the parts.
Link Posted: 9/2/2015 9:28:44 PM EDT

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Originally Posted By sjerdude:
I don't have a multimeter, but am willing to just replace the parts.

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Originally Posted By sjerdude:



Originally Posted By cpl0313:


Originally Posted By Kennyo1:


Originally Posted By sjerdude:


Originally Posted By cpl0313:

Sounds more like a bad limit. The pressure switch is to ensure the induced draft motor is working.  When you say fan is running, You mean the blower motor not the small induced draft motor, correct?




Correct, the blower motor is running. So, its the pressure switch?



Use a multimeter to check for voltage on each terminal of the pressure switch. Check each one to ground or back to the mistral of the transformer.  If you only have voltage on one terminal the switch is not closed.

The presses switch can be replaced with a generic
Of the same temp rating.



On edit , I read temp switch. Carry on.





I don't have a multimeter, but am willing to just replace the parts.

Then by all means, please call a repair guy. This is a gas heater that will kill you if it isnt working correctly.

 
Link Posted: 9/2/2015 9:29:35 PM EDT
that is a 165 degree limit.if it has been getting that hot and locking out,  it will run indoor fan constantly.
heat exchanger needs to be looked at by  professional for your safety.
Link Posted: 9/2/2015 9:38:07 PM EDT

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Originally Posted By cpl0313:



I wish all my customers had your attitude.  
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Originally Posted By cpl0313:



Originally Posted By rgb03:

Looks like its new heater time
I wish all my customers had your attitude.  
I do installs
Link Posted: 9/2/2015 9:40:59 PM EDT
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Originally Posted By fordracer:
that is a 165 degree limit.if it has been getting that hot and locking out,  it will run indoor fan constantly.
heat exchanger needs to be looked at by  professional for your safety.
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Thanks for the help!

Link Posted: 9/2/2015 9:41:02 PM EDT

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Originally Posted By rgb03:



I do installs
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Originally Posted By rgb03:



Originally Posted By cpl0313:


Originally Posted By rgb03:

Looks like its new heater time
I wish all my customers had your attitude.  
I do installs


Link Posted: 9/2/2015 9:43:55 PM EDT
I would get a tech to check the heat exchanger before winter gets here. With the age of the unit it is possible to have a rust hole or crack, I see several a year out of this series that need replaced.
Link Posted: 9/2/2015 10:02:07 PM EDT
Originally Posted By sjerdude:
Issue solved, thanks for all the help!!!
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Good, I guess. You erasing the original post has certainly helped those of us who would have like to learn something here.

Thanks again.
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