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I have 2 LED's continuous slow flashing. System is on, but
Hello, i have 2 green LED's continuous slow flashing. System is on, but heat not kicking on. Lennox furnace about 17 years old … read more
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I'm trying to determine which limit switch is open on my
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I have a Lennox Merit Series G40 UH. The fan will blow, but
I have a Lennox Merit Series G40 UH. The fan will blow, but there is no heat. Two green lights are blinking simultaneously. Hard for me to tell if they are blinking fast or slow. … read more
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Ok, my gas furnace was not running again so I went to the
Ok, my gas furnace was not running again so I went to the thermostat and lowered it below the room temp and it clicked. I then raised the thermostat above the room temp and it clicked and started runn… read more
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My furnace start wont turn on it says primary secondary
my furnace start wont turn on it says primary secondary limit switch open its a lennox … read more
gotoman for ac
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I noticed that when it's very cold, my gas furnace will not
I noticed that when it's very cold, my gas furnace will not meet what my thermostat calls for. Thermostat is set to 68 and the temp in the house is between 63 and 65. My Lennox GHR26Q3/4-100-4 Furnace… read more
Appliance Guru
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I have a Lennox Merit Series gas furnace. the thermostat is
I have a Lennox Merit Series gas furnace. the thermostat is operating OK, there is a call to heat, it sends gas, the blower is on, but the burners do not come on to heat up the hot surface ignitor. On… read more
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I have a Lennox ch33 and woke up to the fan running but no
I have a Lennox ch33 and woke up to the fan running but no heat. Went up in the attic and opened it up. When it gets a signal from the thermostat to run, both flashing lights change to flashing red co… read more
BillyHvac
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My Lennox Merit Series furnace is not working properly. It
My Lennox Merit Series furnace is not working properly. It is the G40UH model and both of the diagnostic lights are on fast flash. It is kicking on and the fan is starting up but then there is no flam… read more
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Hi: I have a lenox g32q3-75-1 the furnce will not com on the
Hi: I have a lenox g32q3-75-1 the furnce will not com on the fan does start It has 2 leds the 1st on flashes the 2nd is on… read more
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I have a elite model ghr26q3-75 My problem is that the furnace
I have a elite model ghr26q3-75 My problem is that the furnace will start and run for a bit then shut down it shows a error code of left led on right led slow flash I cleaned filter and then removed f… read more
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I have a Lennox Merit electric furnace--WB2-17. We noticed
I have a Lennox Merit electric furnace--WB2-17. We noticed the fan was blowing, but no heat was coming out. I checked the filter and it was pretty bad. We replaced it this morning, but still no heat. … read more
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I have a lennox Merit series furnace that is working intermittently.
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I have a Lennox G40UHX series furnace, and its not working.
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lennox merit series. has power. blowing. no heat. Left
lennox merit series. has power. blowing. no heat. Left green light blinking. Right green light solid. any help?… read more
BillyHvac
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I have a lennox G26 furnace. The fan runs and blows cold air.
I have a lennox G26 furnace. The fan runs and blows cold air. The LED indicator was the left light flashing slow and the right light was solid, this indication based on the info on the cover of the fu… read more
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I have a lennox merit c33-36c-2f. On Sunday, woke up and the
I have a lennox merit c33-36c-2f. On Sunday, woke up and the furnace was not running. Shut it off at the breaker, and turned it back on and it ran til this morning--noticed it was off this afternoon w… read more
BillyHvac
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Hey guys! I have a 80 uhg series ennox furnace, when I turn
Hey guys! I have a 80 uhg series lennox gas furnace, when I turn power on and the furnace is calling for heat both led's flash really quick which is normal for (calling for heat mode) just as the comb… read more
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