Furnace Diagnostic Light Codes Decoded: Understanding and Troubleshooting HVAC Systems
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- Опубліковано 31 лип 2024
- Unlocking Furnace Troubleshooting: Master the Art of Reading Error Codes with Our Step-by-Step Guide. Learn how to decode light codes, interpret them, and diagnose furnace problems like a pro.
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Great update
I'm getting a slow red flash with A361, no idea if it's a problem or not? I have a Lennox El296V that was installed last fall.
Hey I could use some help I have this furnace but the 44btu model after running it for a while the blower fan will turn off but no error code then if i cut off power for a 1hr or so every thing goes back to normal ....fan works again and it spins freely all the time no issue with that
I have a EL 180UHE furnace that cuts on and off . I opened the front panel to see if their is an error code. It shows nothing .
I went into P and changed it to 4 instead of 0. Now I have E202, I set P back to 0. How do I clear the E code?
what does the A800 mean or is that normal
I have a lennox and power outage here in texas now power is on but unit said E294 . I reset it a couple times now i got nothing from furnace or t stat.
@@HVAClearning thank you very much for the info.
How about a video on clearing fault codes? Also one for programming a new board.
jasonha9000 hold down the bottom till u get 3 lines then release
@@cesar68033 what button? The diagnostic button or the 3amp button? Thx
Hold whit button till e displays then release and while flashing push it again
Don't forget to buy an extra circuit board for when it goes bad next year!
Or try to look deep in why the board stopped working before you replace it
Dealt with the same issue in fall of 2018. Old board was throwing E270. Did everything. Bought a new board. Worked all the way up to now….Here I’am fall of 2022 dealing with the same issue and code(E270). Lennox is ridiculous
@@Kiddro22 - so sorry to hear of more furnace troubles. Given this is your second blown board, I would strongly recommend that you install a whole-house surge protector in your main circuit-breaker box, as it sounds like your power company is delivering damaging power surges. Have you had any boards on Stoves, Refridgerators or washing machines blow out too? We had a tankless water heater that gave us similar troubles for the first couple of years. After we put in the surge protection (EATON whole house unit in the breaker panel ($150), plus a small dedicated protector for the heater), the tankless and other home electronics have been rock solid for 16 years.
Our Lennox furnace has been rock solid, and I credit (in part) to adding protection from our utility's frequent power surges.
@@WakeUpAmerican000s No boards blown on any other components in the home. Ironically, I cleaned a few connections when I got home from work. Other than throwing E270. It started throwing E125. Then it cycled up on one try and stayed on till it reached the desired temp the thermostat was set to. I know these Lennox’s are very iffy when there’s a poor grounding connection. So that’s when I came to the conclusion that it has to be the board or a grounding issue. I will definitely look into that whole home surge protector. That makes sense. Thanks!
@@Kiddro22 - Glad to hear that you got it working. Knock on wood, our Lennox has not thrown errors yet, but I keep reading that the pressure switches are prone to failure after a few years.
We got totally spoiled by our previous Amana 96% AFUE unit that required only a new ignitor in the 25 years we had it.
Not on my furnace, purchased 2008.
How to clear the code?
As long as we know sequence of operation we don’t need error codes. I’m a 20 yr service tech and we are a Lennox dealer. Yes error codes help junior techs , but are not needed until you get into communicating systems with s30 stats. I challenge all techs to try and find the problem without error , especially with Lennox as the boards will give false codes that wil lead to you chasing your tail.
what does H 2 code mean
Why is calling your tech support number so painfully frustrating I gave up after waiting for 50+ minutes of being on hold
Mine flashes Hh50 - nothing i can find says that
@@HVAClearning I'm not paying somebody to tell me what a code is. Maybe to fix it, sure, but not to tell me what it means.
@@christophercattie then what is the point in commenting then just go look it up an waste your time plus a survice call will only coast you 60$ yall cheap a**
@@prettycureforever7102 I've looked it up all over and can't find it. I'm not paying $60 to find out the outside sensor needs a new battery.
Red light stays on
I know how the operation works so i don't have to read the codes