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Gas furnace lennox g23 100 wiring around valve our burnt

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6 Suggested Answers

6ya6ya
  • 2 Answers

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

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Posted on Jan 02, 2017

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hotuna
  • 288 Answers

SOURCE: gas furnace wont stay lite

I'm a little confused by your terminology. You are saying you have a pilot lite and electric heat strips? Are you possibly meaning burners? Is the heater running for 2 hours straight without shutting off? how cold is it there? Lastly what temperature do you have the thermostat set at and how close does it get to the temp. before it shuts off?

Posted on Dec 20, 2007

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SOURCE: lennox 80 ugh furnace turns on, ignites gas and shuts off in 2-3

I can appreciate in the fact that you do not want to offer a solution to my problem without paying money however you would like me to tell you how I fixed my problem for free, if you would like to know how I fixed it, how about you subscribe to my premium plan and I will tell you.

signed,
Not impressed

Posted on Nov 24, 2008

  • 85 Answers

SOURCE: NEED WIRING DIAGRAM FOR WISPER

http://hvacpartsshop.net/G20_Series.pdf This should be what your looking for.

Posted on Dec 09, 2008

  • 85 Answers

SOURCE: Heater no longer works on auto fan, only manual fan

When you call for fan in auto ensure your getting 24 volts at pin on control board, if it is not energizing then there is a problem with the relay.. Before you change out the expensive control board, try the therm..

Posted on Dec 09, 2008

james3751
  • 614 Answers

SOURCE: How do I clean a flame sensor on a 1993 Lennox

You can sand the flame sensor but it sounds like another problem. Sounds like a limit switch or something in the control circuit, You need to have a service tech look at this. Ask for free estimate on repair. I have worked on hundreds of these units and they are sometimes tricky to work on. Lenox has come up with new controls for the whisper heat furnace to replace the old ones. If the flame sensor is bad the unit will try to light a few times and lock out and you ahve to kull power to the furnace to reset. If this is whats happening clean the sensor nd you should be ok If not you need help from a service tech.Rus

Posted on Nov 11, 2009

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2 Answers

Furnace computer won't let furnace light


What is the model number? I have an SLP98 (installed on 11/29/2011).... and if I take the cover off the front of the furnace the panel that has the fancy "Lennox" badge on it) you will see two clear round windows about the size of a half dollar (one high on the furnace box and one lower on the blower box.) If you look downward into the window on the blower box you can see a red LED display that will sometimes flash error codes like E228 (one character at a time). If your model has something like this, let me know. I've done some DIY fixes recently out of necessity....and their easy.....and several technicians confessed they didn't know much, if anything, about the newer high effieciency Lennox gas furnaces.

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Need heat anticipator setting for Lennox G40DF (X) Series furnace


It should be on the data panel on the furnace It should match the current draw of the gas valve. If you are changing to a new thermostat, the old one should reflect what the setting is.

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I have a armstrong gas furnace and I would like a wiring diagram for it it is a model mg73140


http://www.armstrongair.com/armstrong-links/

from here select the particular furnace that you have this is the only resource the is avail. due to the furnace being a Lennox made furnace

Mar 07, 2011 | Heating & Cooling

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I have a gas valve on a lennox furnace that keeps chattering and causes the flame to go off and on constantly. I have replaced the circuit board and flame sensor and cleaned the pilot ignitor. This has...


If the gas valve is chattering it is probably the coil on the valve. You can obtain a ohm reading on the valve and see if you have high resistance with a multimeter. Also check to see if your getting at least 22 volts across the coil should be terminals mv and c on the valve or sometimes there is just a 2 wire plug going to the valve. I think the coil on the vavle is faulty from the info you have given. Feel the black or silver coil on the valve and see if its getting really hot to touch. I would replace the valve

Dec 23, 2010 | Dayton Gas Lonox Furnace Heater

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I have a lennox 2 stage gas furnace and a lennox XP15 heat pump controlled through the Lennox 7000 touchscreen thermostat. I want to disable the heat pump due to excessive noise due to lower temperature...


At tstat press options. Press installer setup. Yes, you are qualified. System settings, non heat pump. Gas/ oil heat. Save changes. That should do it with no wiring changes.

Jun 18, 2017 | Heating & Cooling

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My Lennox G10R03-110-1 heat unit, will not light the burners even though the pilot light is lit, and the thermocoupler was just replaced today


Hi,
You have a pretty old Lennox there. The G-10's went out of production many years ago....
Since you have pilot and the thermocouple was replaced you will need to check and see if there is voltage going to the gas valve. You should have 24v AC across the two wires on the gas valve when there is a call for heat. If not then the limit switch or the high limit switch are cutting the power to the gas valve. You will need to reset or replace them.
If you have power to the gas valve then you have a
faulty gas valve and will need to replace that.
It if very possible that the gas valve has failed on a furnace the age of yours. That would be my first guess. But do check for voltage before replacing it.

I hope that this will help you to solve your problem!

Thanks for using Fixya!!

Heatman101

Nov 29, 2009 | Heating & Cooling

1 Answer

Need wiring diag for johnson control #G770-RJA-1


Is this on a Lennox gas furnace? If so you may be able to get one from lennox. Imay have one at work, but I won't be back there until Monday. bryan@reedwrightheating.com

Nov 19, 2009 | Heating & Cooling

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