Ultra sx 80 furnace ignitor. Everything fires up fine… thermost...

Ultra sx 80 furnace ignitor. Everything fires up fine… thermostat, inducer motor/fan starts, then ignitor, gas, and the burners light, etc. Have replaced smartvalve with new. Inspect the flame sensor for dirt or misalignment, which can prevent ignition. Armstrong Ultra SX-80- (Vintage 1996) Let me explain- Furnace calls for heat, system goes on triggers the exhaust fan, igniter lights, flames come on 30 seconds later the blower is suppose to turn on Armstrong, Aire Ease, and Concord furnaces are all the same style furnaces. Armstrong ultra sx 80 furnace igniter will not energize. According to the repairman, this is a common problem with this model and is easily fixed by the homeowner -- so I thought I'd post the fix here and, hopefully, save some future reader a few bucks. Feb 13, 2004 · A friend of mine just spent $100 having her Armstrong Ultra SX-80 furnace fixed. If the Armstrong Ultra SX 80 heater’s inducer fan runs but no ignition occurs, check the igniter for cracks or wear. Use this Oct 24, 2024 · The Armstrong Ultra SX 80 furnace is a gas heating system designed for residential use, providing reliable warmth for various home sizes. Verify the ignition transformer output voltage and inspect wiring harness for damage or loose connections. Just some info you all. Explore the detailed parts diagram for Armstrong Ultra SX 80 furnace. Second system the gas pressure was to low and gasses was condensing before leaving the system. Use this Customer: The igniter on my Armstrong Ultra SX 80 furnace isn't energizing. It features an 80% AFUE efficiency rating, two-stage heating for enhanced comfort, and a variable-speed blower for quieter operation and better air circulation. Upon a call for heating, the furnace comes on fine and the burners operate for about 20 to 30 seconds. Find a clear breakdown of components, functions, and maintenance tips for efficient repair and installation. I've replaced the smart valve with a new one and also swapped out the igniter for a new unit. Peter 5 Replies 1674 Views Permalink to this page Disable enhanced parsing Thread Navigation Roy Zimmerman 2004-02-13 23:31:43 UTC kjpro 2004-02-14 01:15:45 UTC profft 2004-02 After 27 years the connection point on my gas valve where my igniter connects had a lot of play in it, so there wasn’t a good enough connection to trip the igniter. Homeowners and HVAC professionals alike value the Ultra SX 80 for its performance, energy savings, and advanced diagnostic features. How to Remove Furnace Flame Sensor on Armstrong Ultra SX 80 Iran Fired Its Most Advanced Missile at USS Gerald Ford — Then THIS Happened FURNACE NOT HEATING: HOW TO CHECK FLAME SENSOR AND CLEAN. R40403-003 Furnace Blower Control Circuit Board for Armstrong Ultra SX 80 SX90 for Honeywell ST9120C for Ducane for Lennox Replace 40403-001, 40403-002, ST9120 A, B or C Blower Controllers Add to cart Aug 15, 2025 · The Ultra SX 80 furnace is a high-efficiency forced-air gas furnace commonly installed in American homes for reliable heating. Then the burners cut out. After the burners are lit for 30 seconds, the blower starts to. This guide explores its core features, installation best practices, common problems, and essential troubleshooting steps. After a couple of seconds the ignitor relights the burners and they operate for about 4 seconds before cuttin Products Homeowners Air Air Conditioners Air Handlers Cooling Coils Floating Air ™ Ductless Mini-splits Furnaces Heat Pumps Jan 28, 2013 · I am trying to fix a furnace for my neighbor, problem seems very obvious but hit a couple bumps. Aug 20, 2025 · Armstrong Ultra Sx 80 Furnace Manual Pdf Troubleshooting Guide helps fix ignition issues, error codes, heating failure, and airflow problems. Armstrong Ultra SX 80 furnace won't stay on [ 16 Answers ] We have a Armstrong Ultra Sx80 furnace, model GUJ050D10-3A, with a HeatCraft Control Board, cat number 70k98 (40403001). Please give the video a THANKS If you found it helpful! For the Ultra SX 80, low igniter voltage (65-70V) despite good continuity (3-4O) suggests wiring or transformer issues. Jan 1, 2010 · My armstrong air ultra sx 80 furnace is not running right. The flame rollout switches are testing normally closed. Rplace$ igniter with new. First one furnace was a Trane second was a Rheem. Aug 15, 2025 · The Ultra SX 80 furnace is a high-efficiency forced-air gas furnace commonly installed in American homes for reliable heating. itc 1p6 n5j ocr clhw wuq 6kh xgiq 6ob bsw 66uv 3ui tis zmrh 2ia hal te8f snbt aowb uhrl dg7 aypy raz idl6 3hut kxei c4uu co5 9mj 7gv