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Our 4-year old lennox system is showing "Service Alert Code:
Our 4-year old lennox system is showing "Service Alert Code: 201" for the indoor unit. First showed up at 7:48 last night, and the system went into "Waiting" mode. Overnight the system started operati… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
7,807 satisfied customers
I have a Lennox C33-30B-2F which is running but not heating.
I have a Lennox C33-30B-2F which is running but not heating. the diagnostic code is A) Primary or secondary limit switch open or B) Watchguard mode-limit switch open longer than 3 minutes. Is there so… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
7,807 satisfied customers
Installed a honeywell RTHL111. Turned on heat and put the
Installed a honeywell RTHL111. Turned on heat and put the set temp to 77 degrees. Room is still at 67 degress 3 hours later … read more
Rick
Rick
Supervisor
24,980 satisfied customers
I neek by one lennox heating motor fan. Model: C33-60D-2F.
i neek by one lennox heating motor fan. JA: Did you double-check the thermostat's settings? And what about the filters? Customer: model: C33-60D-2F JA: Do you plan on doing the work yourself? Customer… read more
BillyHvac
BillyHvac
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State Licensed Mechanical Contractor
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I moved into a house with a Lennox C33-30B-2F-3 furnace and
I moved into a house with a Lennox C33-30B-2F-3 furnace and the air conditioner seems to be working, but no air is coming out of the vents. I don't see any problems with breakers. Is there something I… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
7,807 satisfied customers
I have a lennox model c33 36b 2f and last couple of weeks we
I have a lennox model c33 36b 2f and for the last couple of weeks we have been hearing a banging noice...I went down to the furnace tonight and the banging noice is the furnace nearly shutting down an… read more
HvacmanSean
HvacmanSean
Owner
HVAC
234 satisfied customers
I have a lennox c33-36c-2f-6 JA: I'll do all I can to help,
the blower motor runs continuosly but there is no flame present … read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,362 satisfied customers
I have a lennox c33-43c-2f-6 Serial number 3014m13016. it
I have a lennox c33-43c-2f-6 Serial number 3014m13016. it cycles then shuts off. the installer said i need a Hose going out to the condensation trap and I had someoene else look at it and he said that… read more
Rick
Rick
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24,980 satisfied customers
I have a c33-38b-2f-6 Lennox furnace. No heat. Red light
I have a c33-38b-2f-6 Lennox furnace. No heat. Red light flashes 3 times which the guide tells me indicates "Pressure switch open with inducer on" No idea what that means.… read more
Rick
Rick
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My ac "Lennox C33-36B-2F". Is not coming on, its only four
My ac "Lennox C33-36B-2F". Is not coming on, its only four years old. There's no power or lights in the unit… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,362 satisfied customers
We have a new home with a Lennox C33-43c-2 furnace and a Triton
We have a new home with a Lennox C33-43c-2 furnace and a Triton HE Plus 200 air purification system and during construction the builder forgot (and we failed to double check) to install the Honeywell … read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
7,807 satisfied customers
Last winter a AC teach came and replaces something in my gas
Last winter a AC teach came and replaces something in my gas heater/ac. He advised me to change the thermostat. He said they he left the wire the controlled the Ac unplugged and when I changed the the… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
7,807 satisfied customers
I am a homeowner with little knowledge of HVAC technology.
I am a homeowner with little knowledge of HVAC technology. Im out of a job and trying to save some money if I can fix the problem myself instead of calling a repairman. I have a lennox model c33-38B-2… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,634 satisfied customers
I woke up to a cold house this morning but my furnace still
I woke up to a cold house this morning but my furnace still comes on and heats. I changed the thermostat and my house is staying at 72 F even though my thermostat is set to a temporary setting of 82 F… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
7,807 satisfied customers
HVAC Issue - No Power to System Last night I went to replace
HVAC Issue - No Power to System? Last night I went to replace my existing programmable thermostat, which was working but wasn't accurately reading the room temperature, with a new one. I turned off th… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,892 satisfied customers
I am working with Lennox furnace model C33-36B-2F. My humidifier
I am working with Lennox furnace model C33-36B-2F. My humidifier filter was not changed for a while. Water was dripping out, so I shut water off over night took filter out and cleaned up in the mornin… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,362 satisfied customers
I have a C33 36C Lennox Furnance in my basement. This morning
I have a "C33 36C 2" Lennox Furnance in my basement in 2004. Yesterday morning it was not working and the technician replaced the transformer. The furnace worked fine all day (8 AM to 9 PM) and then s… read more
KenCan
KenCan
Vocational, Technical or Trade Scho
111 satisfied customers
I have 2 lennox C33-24C-2F-2 furnaces in my house. The Thermostat
I have 2 lennox C33-24C-2F-2 furnaces in my house. The Thermostat seems to be working and it switches on when the requested temp higher than the room temp. However the furnace only runs for a few minu… read more
Mark Henley
Mark Henley
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Phil

Phil

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Tom

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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