If you’re looking for help fixing your Armstrong furnace, look no further! Our comprehensive Armstrong furnace repair guide will explain common issues, provide troubleshooting tips, and show you how to read your model’s error codes.

CODE: LED is on and not flashing
PROBLEM: The furnace is operating normally

CODE: Single LED flash
PROBLEM: Flame continues to burn when the gas is off

CODE: Two LED flashes
PROBLEM: Problem with the pressure switch

CODE: Three LED flashes
PROBLEM: Problem with the pressure switch

CODE: Four LED flashes
PROBLEM: Problem with the high limit switch

CODE: Five LED flashes
PROBLEM: Problem with the rollout switch

CODE: Six LED flashes
PROBLEM: Problem with the pressure switch

CODE: Seven LED flashes
PROBLEM: Problem with the ignitor

CODE: Eight LED flashes
PROBLEM: The flame is dropping

CODE: Nine LED flashes
PROBLEM: Problem with the voltage

armstrong furnace codes

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I would like to recommend your company to anyone

Wing Sang LeungNorth York, Ontario

Work was done neatly. Can barely see the pipe that was installed

Ellen McaleerOshawa, Ontario

KDM's cost was amazingly reasonable compared to all other quotes

Don GibsonMarkham, Ontario

I would recommend this company to anyone who is looking for a professional job at a reasonable price

Don BlakeWhitby, Ontario

I would recommend KDM Home Gas to anyone looking for quality home repair services

Giselle DharmiWhitby, Ontario

Thank you guys! We couldn’t be happier

Maria & Steve HalvorsonPickering, Ontario

I highly recommend KDM Home

Frank HowardWhitby, Ontario

I would recommend KDM Home & Gas to anyone looking for great service at a good price.

Josh TaylorAjax, Ontario

Great guys Daniel and Shane did an excellent job

George TrajkovskiAjax, Ontario

KDM did our fireplace gas line and heat venting

Maria & Steve Halvorson Oshawa, Ontario

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