Question about Heating & Cooling

1 Answer

Blower just started staying on - furnace has been turned of for 6 months

Posted by Anonymous on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    New Friend:

    An expert that has 1 follower.

    Cheetah:

    An expert who has answered 20 or more questions within one hour.

  • Expert
  • 83 Answers

This is a diagram of a blower relay and a fan motor, the normally closed fan relay switch goes to the low speed which is the Heat speed, the low speed is controllled by a temperature delay depicted in the low speed circuit.
The normally open fan relay switch goes to the high speed, which is the AC modes speed , also if you run the fan continuously via the fan switch on the thermostat this is also to high speed.

I suspect the temperature delay's on setting is being reached thus cycling the low speed of the fan.



Blower just started staying on - furnace has been  - 25948531-olwf3gt1n1i2ofytj5fivkso-4-0.jpg

Posted on Nov 09, 2015

Ad

1 Suggested Answer

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this 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.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Furnace goes out when blower should start


There is a sensor called a pressure switch that is attached to the area of the blower motor for the exhaust fan. It is bad or plugged.

Nov 16, 2015 | Heating & Cooling

2 Answers

1999 Goodman down draft natural gas furnace. It starts as normal, the burners fire and it warms up, but the blower doesn't start, after a couple minutes the burners shut down and the blower immediently...


IT SOUNDS LIKE THE FAN CYCLE RELAY OR BOARD IS NOT MAKING THE FAN COME ON WHEN IT SHOULD THE BURNER SHUTS OFF PROBABLY BECAUSE IT REACHES THE HIGH LIMIT.

Feb 03, 2015 | Heating & Cooling

1 Answer

Coleman evcon furnace


How old is your furnace? Does it have a circuit board that controls everything, or are there separate controls for each function?

Nov 19, 2013 | Heating & Cooling

1 Answer

Carrier 58STA furnace code 33, no ignition blower stays on. I have a Carrier 58STA furnace. It's getting a code 33 and never trying to ignite. The blower constantly stays on. It is pushing good air...


33 is a limit switch open take your furnace doors off and there should be a wiring diagram. on this furnace the blower will run if this is open. check rool out swict and linits. it sounds like you have a problem with over heating. how does the fire look ? is the vent blocked ? things like thathttp://www.scribd.com/doc/20861415/Carrier-58pav-Service-Maint i think page 9 has falt codes

Feb 11, 2011 | Heating & Cooling

1 Answer

The heater coils are staying on after the thermostat kicks the blower off on the furnace. The coils are heting up the whole furnace until the blower kicks back on. Shouldn't the coils turn off when the...


Hi,

The contactor or relay that turns the coils on has burnt the contacts closed....therefore the contacts are not releasing and shutting down the coils...

A rap to the side of the furnace may knock them loose but they will need to be replaced...

You can also shut them down by turning off the power to the furnace at the breaker.

heatman101

Jan 18, 2011 | Heating & Cooling

1 Answer

Hi, I have a Goodman furnace model GKS91155DXAD. The blower stays on. After turning power off for a few minutes then back on, the draft blower comes on for a few seconds then goes out but the blower...


I would check hot surface ignitor or spark ignitor to make sure they are working. If not then replace them and try again.If ignitor does not come on control board will shut down, try to restart usually try 4-5 times then lock. out. Generally for a preset time then try again. If it has tried to start to many times and failed it will lockout until power is shut off and it can reset. Hope this helps you. Thanks

Nov 17, 2010 | Heating & Cooling

1 Answer

Ruud IFC Furnace Blower comes on and stays running, never lites


Check on the circuit board for an automotive type fuse that is probably blown. These fuses blow because of a short in the control wiring. If the fuse is blown a lot of furnaces run the fan all the time as a diagnostic. You will have to find the short or it will just blow again.

Oct 04, 2009 | Heating & Cooling

1 Answer

Aprilaire 760 keeps running.


The humidifier should not turn on untill the furnace blower starts. Since the fan stays on. does the solenoid valve also stay on? If they both stay on you probably have a bad humidistat. If only the blower stays on then the circuit bourd in the humidifier is defective.
Good luck
HVAC Teacher

Feb 06, 2009 | Aprilaire 700 Humidifier

1 Answer

Coleman presidential II furnace blower on and off


Sounds like the flame sensor. But it could be the thermostat. Is the furnace standing pilot or electronic spark or hot surface ignition. I would start by checking thermostat. Turn power off to furnace take thermostat off wall and take wires marked r & w and connect them together. Turn power back on if furnace works then change out thermostat.Most eclectronic ignition Furnaces have a flam sensor, You could take flame sensor out and clean it up with steel wool or wire brush. If you need anymore help just reply back .

Jan 17, 2009 | Coleman Propane Forced Air Heater...

2 Answers

My heater turns on the gas starts but then it shuts down


Try to locate the red and white wires either behind your thermostat or on the furnace itself. Jump them out and see if the furnace stays on. If you do it at the furnace you will need to hold the door switch down. If it runs fine, you have found your problem (the thermostat) if it goes out again, the furnace will display a number of blinks on the circuit board. Look on the reverse side of the furnace access door and there should be an Error Code chart to get you started figuring where to look next.

Nov 10, 2008 | Goodman GMS90703BXA Heater

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

Related Topics:

63 people viewed this question

Ask a Question

Usually answered in minutes!

Top Heating & Cooling Experts

Paul Carew

Level 3 Expert

3477 Answers

Donni Steen

Level 3 Expert

687 Answers

Marvin
Marvin

Level 3 Expert

85206 Answers

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

Answer questions

Manuals & User Guides

Loading...