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Gaztech
Gaztech, HVAC Technician
Category: HVAC
Satisfied Customers: 412
Experience:  Owner at Gaztech
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My furnace is blowing cold air. The red light is blinking

Customer Question

My furnace is blowing cold air. The red light is blinking 6times
JA: Did you double-check the thermostat's settings? And what about the filters?
Customer: Replaced filter and checked thermostat
JA: Do you plan on doing the work yourself?
Customer: If possible
JA: Anything else we should know to help you best?
Customer: Just what the code of 6 blinks means
Submitted: 1 month ago.
Category: HVAC
Expert:  Gaztech replied 1 month ago.

What is the exact make and model on furnace,

model is usually found inside top compartment on a sticker right or lft side inner panel

Customer: replied 1 month ago.
Model number is ***** fan was running constantly... Thermostat wont shut it off, i replaced thermostat... Same thing..had to shut it down at switch on side of furnace... Still blinking 6 times
Customer: replied 1 month ago.
Blowing cold air.. burner not kicking on
Expert:  Gaztech replied 1 month ago.

Te furnace blower is running constantly because it is in lockout mode,

and..

you have to go and read the error code trough the small window of bottom panel.

count the amount of led flash between pauses

Customer: replied 1 month ago.
6 blinks
Expert:  Gaztech replied 1 month ago.

Count flash code again , 6 is non existant

Expert:  Gaztech replied 1 month ago.

Flame sensor probably needs to be cleaned, it is located within the burners, it looks like this picture

Customer: replied 1 month ago.
Checked flashes 4 times. Each time 6 blinks
Customer: replied 1 month ago.
I will look and see are there two of them
Expert:  Gaztech replied 1 month ago.

Found the error code, says flame rollout switch has sensed flame coming back out

• Check flue and air inlet piping for blockage, proper length, elbows, and termination.

• Check rollout limit switch, the red reset buttom is poped out, press it back in but check for flue blockage.

here is a picture of what it looks like

Expert:  Gaztech replied 1 month ago.

it is around the burners

Expert:  Gaztech replied 1 month ago.

Hello????

Customer: replied 1 month ago.
Cleaning flame sensor then willnput bqck and look for other thing. Is thst in lower panel
Expert:  Gaztech replied 1 month ago.

pic#2

Expert:  Gaztech replied 1 month ago.

push in red button in the middle of switch shown in pictur, there is up to 3 switches like this around the burners

Customer: replied 1 month ago.
Iservice guy showed up said induction motor notnworking he spun it and got it working.
Customer: replied 1 month ago.
But took alot ofspinning
Expert:  Gaztech replied 1 month ago.

NOTE: I can only get paid for assisting you if you RATE ANSWER the 5 star rating at top of page after you are satisfied with answer.

Happy all is good

Best regards

Luke

Expert:  Gaztech replied 1 month ago.

Thanks

Customer: replied 1 month ago.
Kicked off again now blinking three times ??
Expert:  Gaztech replied 1 month ago.

Hello,,,

Expert:  Gaztech replied 1 month ago.

there is something wrong with your system and it was not detected with your last service call, you need to resolve this with a full service maybe with a second visit, or a different service tech.

Expert:  Gaztech replied 1 month ago.

I see that the question is still open , do you need more help?