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No heat led blinks once then 3short blinks. What error code…

Customer Question
No heat led blinks...

No heat led blinks once then 3short blinks

Contractor's Assistant: Did you double-check the thermostat's settings? And what about the filters?

No

Contractor's Assistant: Do you plan on doing the work yourself?

Yes

Contractor's Assistant: Anything else we should know to help you best?

What error code is this

Submitted: 8 months ago.Category: Home Improvement
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Answered in 5 minutes by:
12/12/2017
Home Improvement Expert: Home Guru, Handyman replied 8 months ago
Home Guru
Home Guru, Handyman
Category: Home Improvement
Satisfied Customers: 18,754
Experience: Owner
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One moment please..Note it takes time to type and add links so please be patient. Also the site will send you a phone call offer, that is not me.

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Home Improvement Expert: Home Guru, Handyman replied 8 months ago

That is typically a lockout code what is the make and model of the unit? Also if you look at the backside of the panel that you can take off the furnace the error code list should be there for your unit, let me know what you find.

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Customer reply replied 8 months ago
Pg9maa024060
Customer reply replied 8 months ago
Payne
Home Improvement Expert: Home Guru, Handyman replied 8 months ago

This is a limit code.There are high limit safety thermostats that are around the burner housing area that can trip open if they fail or the unit is overheating. Some of these have reset buttons on them that you can manually press down to reset while others do not. The ones that do not either are one time limits or are limits that are suppose to manually reset when cooled down. Now that does not always happen when they go bad so you will have to check them for continuity with an ohm meter across the two leads going to them. If you do not pwn a ohm meter you can physically bypass each rollout to make sure it is good by connecting the two wires to each rollout sensor together to see if the unit will then operate. Now once you have found the bad one you can change it out or reset it and then you should check your furnace filter for blockages and make sure you main furnace blower is running to speed. These two things can cause a unit to overheat and trip one of these rollout sensors. Mosts units have 3 of these devices and here is a link to what they can look like on your unit.

CLICK HERE

CLICK HERE

CLICK HERE

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Home Improvement Expert: Home Guru, Handyman replied 8 months ago

Hi there,
I was just touching base with you because I have not heard back from you and the question is still open and unrated, I am not credited anything until a good star rating is supplied I would really appreciate it if you could do that thanks!

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