Question about Heating & Cooling

1 Answer

Armstrong v tech 91 furnace. will not make heat. when on unit runs continuosly no matter what thermistat is set at. could mother board be bad,replaced once already. cah this be done by the home owner to save the inflated cost of a repair company coming out. thanks donny

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Prodigy:

    An expert who has answered 500 questions.

  • Expert
  • 540 Answers

These furnaces goes thru 4--steps for complete run time.... step-1, the small draft inducer blower motor blows and prove thru the small air tube that sucks a switch close to tell the circuit board to go to step-2......the glow plug glows for 15 seconds and step 3 the gas valve opens and dump gas in the venturi tubes and lights off the glow plug and proves thru a flame sensor (pin with 1 electrical wire connection) on the last venturi tube which tells the circuit board to go to the last step 4--, to turn on the main blower fan after 90 seconds!. Where ever it stops at then thats where your problem is!

Posted on Sep 13, 2008

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that 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.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Furnace lights blows heat in cycle, pops sensor on blower and continuosly blows air until button on sensor is pushed back in


If the sensor knocks the unit off and the the fan keeps blowing without a flame ,the limit (the sensor is a limit comptroller that turns off flame @ a set temp and allows the fan to run until the heat exchanger cools to @ set temp) has out lived its lifetime and needs to be replaced.the button is a manual reset that once reset would allow the unit to continue to run flame and blower at the same time after having been set once, if it is an ongoing problem and needs to be reset more than once then replace the limit control (sensor) in kind. (With the same mode and set-points for the limits)

Oct 25, 2012 | Intertherm 56000 Btu Gas Furnace

1 Answer

Armstrong furnace won't stop running


Hello, sounds like the relay on the intergrated control board is sticking. This will require the board to be replaced.

May 07, 2012 | Heating & Cooling

1 Answer

Hi, My parents have an Armstrong Furnace Ultra V Tech 80 Model #G1N80AR100014B-2A. I am a building engineer with service exp. and have also had a service tech. out. After much research here is my...


You can check the flame sensor with a microamp meter to see if the flame sensor is good unhook the wire going to the flame sensor put one wire lead of microamp meter in the wire and connect the other wire from the microamp meter to the flame sensor the turn on the furnace for a cll for heat if you get less than .9 microamps replace the sensor.

Mar 08, 2010 | Heating & Cooling

1 Answer

Gas Armstrong Ultra V Tech 91-Is green light supposed to flash?


Installed a new filter and furnace is running great now. The old filter was not that old, but we have been doing some remodeling and I figure that is what clogged it so fast.

Jan 10, 2010 | Armstrong H 67 1PH Bf In Line Circulator...

1 Answer

Looking for elec. wiring diagram Armstrong unit pge10a42d100a-3a


Google Lenox and you will get armstrong also. The have tech site for diagrams and instructions.

Nov 28, 2009 | Heating & Cooling

1 Answer

I have outside Goodman-Janitrol furnace and air unit and


two things to try first to get you pointed in the right direction. First disconnect the R or RH wire from the T-Stat. If the furnace turns off (Stops firing w/ fan to turn offabout 90 sec. later) then you more than likely have a bad Thermistat. If it continues to run Pull the R wire from the Furnace circuit board. put door back on furnace if it stops you have a short in the wire. Still Running? Most likely a bad curcuit board. Hope this helps.

Oct 12, 2009 | Goodman GMS90703BXA Heater

2 Answers

Furnace runs on heat, air conditioner does not


If you have a Gas furnace in the Attic then the answer is yes. The outside condenser will not run if in fact you have a gas furnace.

Feb 11, 2009 | Ruud Central System Air Conditioner

1 Answer

AprilAire 760 not running after installing new circuit board


I called the service company that put in my new furnace (FAmily Heating and Cooling in Detroit, very highly recommend these people)

Anyway they sent out a second service tech who determined that I would be better off having the humidifier wired to go on whenever the furnace fan was running instead of using the humidifier signal from the circuit board on the furnace. After he changed the wiring the unit runs fine. It is pretty likely that the circuit board was bad also.


Nov 27, 2008 | Aprilaire 700 Humidifier

1 Answer

Armstrong air tech 91 furnace problem


Sounds like the flue is plugged, I had same problem and opened up the draft fan and there was a dead bird restricting the flue. Furnace will never light if the pressure switch never closes as you have found out. Also has anyone moved the switch some are position sensitive meaning have to be in same position factory set the switch. I had one like that also switch was little crooked so I straighten it up and walla worked.

Nov 23, 2008 | Heating & Cooling

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

Related Topics:

258 people viewed this question

Ask a Question

Usually answered in minutes!

Top Heating & Cooling Experts

paulcarew

Level 3 Expert

2184 Answers

Dan Webster
Dan Webster

Level 3 Expert

8205 Answers

Donni Steen

Level 3 Expert

659 Answers

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

Answer questions

Manuals & User Guides

Loading...