HVAC

Have HVAC questions? Ask an HVAC Expert for answers

Ask an Expert,
Get an Answer ASAP!

Related HVAC Questions
What are your fees to chat please. What is the usual fee
I have a carrier 58 MVP natural gas furnace. The furnace was not heating the house and temperatures got into the 50s on Saturday. The blower was cycling on and off and I had error codes 4 short and 2 Long. On Sunday still the same but error codes 2 short and 3 long. Our repairman did come today and found condensation water backed up in the furnace. He drained a lot of water (more than 1/2 gallon) and cleaned out the trap. The furnace is working ONLY on low burner and low fan speed now. After 16 minutes of low burner it should kick into high burner and high blower speed. It will only run on low burner and low blower speed. The technician did use a jumper wire and the high burner and high fan speed did work and we left the jumper on to get the house up to temperature. Currently the furnace is running on low burner and low blower. The outside temperature is moderate now only 35 degrees and the house temperature is maintaining our requested 68 degrees. Looking on the internet I have seen this issue posted but no solutions. The technician is still researching this with a Carrier representative. My hunch is it may be due to the water backed up from the burners?? What are your thoughts on how to get the high burners and high blower to work automatically after the normal 16 minute period of low burner and low blower. There are no error lights on the furnace now just the continuous solid white light indicating all is well. We always run our carrier thermostat on continuous fan. The unit was installed in 2005 and had not problems. We also have a carrier heat pump which we use only for air conditioning in the warm weather. No issues with the heat pump and no issues until today with the carrier 58 MVP natural gas furnace. I have seen this issue posted on the internet but without any solution. … read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
8,007 satisfied customers
Lochinvar Knight 150 Gas boiler. Model KBN150. Problem reeds
Lochinvar Knight 150 Gas boiler. Model KBN150. Problem reeds LOCK OUT HIGH SPEED FAN, there is nothing in intake or exhaust pipes? … read more
Daniel Plourde
Daniel Plourde
HVAC Technician
Vocational, Technical or Trade School
470 satisfied customers
Limit switch is tripping every time stage 2 fires up on my
limit switch is tripping every time stage 2 fires up on my furnace … read more
Regan Land
Regan Land
General Manager
Vocational, Technical or Trade Scho
768 satisfied customers
I have a ***** ***** 80t flashing error code 43. after
Hi. My name is***** have a ***** ***** 80t flashing error code 43. after switching it on (resetting so LED is steady), the inducer comes on and I confirmed the flow is opening both high and low switch… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,933 satisfied customers
My Trane XV80 fires properly, but fan only turn on 'gh'
My Trane XV80 fires properly, but fan only turn on 'high' intermittently. When fan is turned on at the thermostat...fan does come on, but on low. We normally keep the fan in the 'on' position all the … read more
Appliance Guru
Appliance Guru
18,835 satisfied customers
Cleaned the coils on our Munchkin 140M (R2) today per the
Cleaned the coils on our Munchkin 140M (R2) today per the Maintenance Instructions of Part 15. Made sure the condensate line was clear and the exhaust flue was also clear. Vacuumed out all of the debr… read more
Rick
Rick
Supervisor
25,239 satisfied customers
I have a rheem 50 gallon powervent water heater. I get the
I have a rheem 50 gallon powervent water heater. I get the maximum start sequence error and the unit locks out. Turn the heater off and it restarts just fine. Runs for appx 15 min same error code. Rep… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,634 satisfied customers
American Standard freedom 90 two stage no heat startup
American Standard freedom 90 two stage no heat startup shows last four error codes... all three blink (presure switch) exhause motor/fan starts then increases speed Flame igniter glows bright orange 1… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
8,007 satisfied customers
My EdgeStar DEP650EW humidifer is stuck on the "high" fan speed.
My EdgeStar DEP650EW humidifer is stuck on the "high" fan speed. Up until today, we were able to choose the fan speed and humidity level. I emptied the bucket tonight, placed it back in the unit, and … read more
hvacexpertjoe
hvacexpertjoe
Electronics Technician
Vocational, Technical or Trade Scho
183 satisfied customers
Ive been having a problem with my Carrer Gas Pack.
I've been having a problem with my Carrer Gas Pack. Unit intermittently does not respond to calls for heat especially when temp drops below 30 degrees. I'm getting error codes indicating that there is… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,368 satisfied customers
mascot ht 330 boiler. Getting error code 160 Fan speed threshold
mascot ht 330 boiler. Getting error code 160 Fan speed threshold not reached Diagnostoc code is 22 Fan speed on standstill in standby and not reached.. the fan blows fine high speed and slow. to expla… read more
BigDave
BigDave
Service Technician
High School or GED
113 satisfied customers
Lennox Model# G27M3-75A-2 Serial#6398K02294 Problem Unit
Lennox Model# XXXXX Serial#6398K02294 Problem: Unit goes into low fire heating cycle on a call for heat from thermostat. After approx. 7-10 minutes unit goes into high fire with inducer fan going to h… read more
Douglas
Douglas
Vocational, Technical or Trade Scho
3,087 satisfied customers
I have a Lennox G24M furnace with standard Ram control board. The
I have a Lennox G24M furnace with standard Ram control board. The furnace occasionally goes into lockout (4 flashes) and the circulation fan will not operate. The Combustion blower and burner continue… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,933 satisfied customers
I have a carrier wqaether maker 8000 furnace. I am not gwetting
I have a carrier wqaether maker 8000 furnace. I am not gwetting any response from the unit when I turn the thermostat steeing higher. I can hear the thermostat click. but no fan or burner. Where on th… read more
Regan Land
Regan Land
General Manager
Vocational, Technical or Trade Scho
768 satisfied customers
I just installed a new 95% 45K Goodman furnace and 1.5 ton
I just installed a new 95% 45K Goodman furnace and 1.5 ton central air. Air worked just fine this summer. Turned on furnace, everything seems to work. It heats, fan works, etc., but before it gets up … read more
Mark Henley
Mark Henley
HVAC Controls DDC
3,216 satisfied customers
I have a Carrier 58MXA060-12 gas furnace. I had the heat exchangers
I have a Carrier 58MXA060-12 gas furnace. I had the heat exchangers changed out on the class action law suit 1 year ago. Now the furnace has been cutting out leaving the blower motor running. Error co… read more
coolman1973
coolman1973
AC/Heat Tech
Vocational, Technical or Trade Scho
162 satisfied customers
I have a York high efficiency gas furnace which stopped cycling
I have a York high efficiency gas furnace which stopped cycling on except once per hour (special protection feature). The fault code displayed 8 flashes and locked out when the burners kept dropping o… read more
coolman1973
coolman1973
AC/Heat Tech
Vocational, Technical or Trade Scho
162 satisfied customers
I have a coleman evcon residential furnace everything operates
I have a coleman evcon residential furnace everything operates and the blower kicks on at low speed and then the unit shuts off with an error code of High Aux. or Spill Limit Switch Open. What does th… read more
coolman1973
coolman1973
AC/Heat Tech
Vocational, Technical or Trade Scho
162 satisfied customers
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.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future.

JimmyBagley, IA

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

< Previous | Next >

Meet the Experts:

Phil

Phil

Mechanical Engineer

7,634 satisfied customers

Retired HVAC/ Electrical & Boiler contractor. Industrial

Rick Mather

Rick Mather

HVAC Technician

3,133 satisfied customers

35 years experience, HVAC

Matthew

Matthew

HVAC Technician

2,014 satisfied customers

14 years experience in the HVAC field of service, installation, Manual J & D calculations

Brian HVAC Guy

Brian HVAC Guy

HVAC Technician

1,024 satisfied customers

I have been an HVAC/R mechanic/technician for 30+ years.

Kenton Guidry

Kenton Guidry

HVAC Technician

963 satisfied customers

12 years install/service experience.

Rick Ridley

Rick Ridley

UK Heating Engineer

871 satisfied customers

Retired But have had 30 years on the tools, Ex CORGI

Tom

Tom

HVAC Technician

770 satisfied customers

16+yrs HVAC/R service. Residential Commerical Industrial

< Previous | Next >

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.

Show MoreShow Less

Ask Your Question

x