We have been getting lots of questions about how to install thermostats properly. Many questions are about why my newly installed thermostat is not working properly. I found this excellent Youtube video from AC Service Tech that shows what the top 12 problems and mistakes are when installing or replacing thermostats. I hope this helps you when installing or replacing a thermostat. Thanks so much to AC Service Tech for making this excellent video! Wewould love to help you out and earn your business! Please email us anytime if you have questions. Support@arnoldservice.com
We have this questions asked many times over the years and I want to post my response to this frequently asked question: I am so sorry to hear that you have spent all this money and still do not have a furnace and air conditioner that are working properly! I have this problem asked many times over the years and my answer is: I would strongly recommend that you have your HVAC contractor do a Manual J Heat Gain and Heat Loss calculation on your home before installing a new furnace or doing any other work. We are required here in Louisville, KY to submit a Manual J calculation to the Housing Department, Code enforcement before a permit will be issued to start a new installation. Without the Manual J calculation, it would be a guess as to what size equipment needs to be installed and this is why many people get the wrong size equipment. Requiring a heat gain, heat loss calculation protects the homeowner from getting the wrong size HVAC equipment installed. Most companies have a Manual J computer program where they enter the required information like the home’s orientation (facing north, south, etc.) the amount of insulation, window types, door types and all surfaces that gain or lose heat and more. The computer program will figure the amount of heat loss and gain and tell the contractor what size HVAC equipment needs to be installed. I would recommend that you get this Manual J calculation completed for your home so you know for sure that you are getting the right sized HVAC equipment installed. Even though it is a pain and extra expense for the homeowner and contractor this insures the right size equipment is installed and is invaluable for protecting your energy bill and comfort. We have many other air conditioning and heat pump troubleshooting pages. Please click here to see more troubleshooting advice. Please click here to see the many name brand air conditioner and heat pump repair parts that we sell. We would love to answer your questions and earn your business! If you have any questions please email us anytime: Support@arnoldservice.com
Problem: I am trying to replace the furnace control board on my Goodman furnace. How do I remove my furnace control board without breaking the plastic pins that hold the board in place? I tried needle nose pliers and my fingers, but I am afraid I am going to break the control board pins that hold the board in place. Do you have an recommendations?
Answer: A customer of ours Mr. Young, sent me this Youtube video (below) which shows how to easily remove a furnace control board using a Bic ink pen with the ink cartridge removed. I will be sure to keep an ink pen with the ink cartridge removed in my tool box! Thanks to Total Air Supply Inc. for making this great video!
Problem: We have many people ask, “Why is my fan blower motor running all the time. My blower motor will not shut off?” “Why does my fan motor run continuously when I use my furnace?”
Answer: I found a real good Youtube video made by ACServicetech that explains 4 reasons why fan blower motors run continuously. In this video ACServicetech goes over why the Blower Fan Motor Won’t Shut off/Continuously Runs and some of the most common reasons why furnaces or air handlers have this problem. ACServicetech shows step by step Troubleshooting on how to figure out what is causing this problem. This is a great video that I would highly recommend that you watch if your fan motor is running continuously. Many thanks to ACServicetech for making this informative video! If you have any questions please feel free to email us anytime or respond in the comments section below. We have many heating and air conditioning troubleshooting links, Videos and Resources on the following page: Please click here for more troubleshooting resources. We would love to help you out and earn your business! Our email address is: firstname.lastname@example.org
Questions: We have many people ask, “how can I find out why my fan blower motor is not working?” “Why does my fan motor not work when I turn on my furnace or air conditioner?”
Answer: I found a real good Youtube video made by ACServicetech that explains the top 10 reasons why fan blower motors will not come on. ACServicetech goes over what to look for in the system, components that fail most often, how to test the components, where to take readings with a multimeter as well as other tips! This is a great video that I would highly recommend that you watch if your fan blower will not come on. Many thanks to ACServicetech for making this informative video! If you have any questions please email us anytime. Our email address is: email@example.com. We would love to help you out and earn your business!
Question: We have many nice people ask us questions about why their spark ignition gas furnace is not working right? Some of the problems are:
My furnace does not spark.
My spark ignition furnace will not light the pilot.
My spark ignition furnace will not light the main gas valve.
My spark ignition furnace cuts the main gas valve on for a short period of time and then cuts the gas right back off. What is wrong?
I found two real good Youtube videos below made by ACservicetech that will definitely help you in troubleshooting gas furnace spark ignition problems. Thanks to ACservicetech for making these two great videos. If you have any questions please let me, Steve Arnold know. Our email address is: firstname.lastname@example.org. I would love to try and help you out!
Question: I have a Super Quiet 80 Achiever Series by Rudd furnace. It works great when it wants to. Intermittently it will shut down at night and we have to wake up cold in the morning. Troubleshooting reveals the first burner of the 3 always lights like it is supposed to, but the other 2 don’t always follow suit. Sometimes they light off and other times they try twice , fail , and the furnace shuts down till we reset everything and start over. Service tech came out, cleaned the ignitor, checked everything he could think of and it seemed to work well while he was here. He said we could possibly have a low gas pressure problem. I guess I’m looking for some professional input before calling him back and start the high priced guessing game again.
I would really appreciate any input you could give me. Thanks in advance !! Joe
Answer: Hi Joe! Sorry to hear that you are having trouble with the burners not lighting all the way across sometimes. This probably occurs most often when the furnace is cold and trying to light and start. If the service tech did not already do this I would suggest that you turn the furnace and gas off, take the burners out and blow them out with compressed air and use a wire brush to clean them out on the outside. I would unscrew the gas orifices and blow them out with compressed air. I would suggest either cleaning or replacing the flame sensor while you have the burners out. If you need part numbers please send me your furnace’s model number and serial number to our email address:email@example.com and I will give you the part numbers. If you are still having problems with the two burners not lighting properly I would suggest adjusting the gas pressure up on your gas valve. I would suggest turning the adjustment screw counter-clockwise 1/4 a turn and test to see if this helps. Be ready to turn the furnace off with the power switch if the furnace does not light right away because if the gas valve is not adjusted properly it can cause delayed ignition (small explosion) and this is not good. I have seen delayed ignition blow furnace doors off! There is a good Youtube video on how to properly adjust gas pressure on the following page: https://www.youtube.com/watch?v=xvQabz6d_4g Thanks to ACServicetech for making this great video! Your problem sounds like either dirty burners or gas pressure on the gas valve set too low. I hope you can find and fix this problem soon! Steve
We have had many people ask us about how to troubleshoot Honeywell Smart Valves. I found a real good Youtube video made by ACServicetech which explains how to troubleshoot Honeywell Smart Valve gas valves below. I hope this will help you to easily troubleshoot your furnace problems. We sell one Honeywell Smart Valve on the following page: https://arnoldservice.com/product/sv9501m2528-honeywell-smart-gas-valve/ We sell the Honeywell Smart Valve complete pilot burner assembly on the following page: https://arnoldservice.com/product/70l5401-honeywell-smart-valve-complete-pilot-burner-assembly/ Please email us anytime if you have a question. Our email address is: firstname.lastname@example.org. We would love to try and help you out! We hope the following video will help:
We have many customers ask how to find a low voltage short when the low voltage transformer is burning up or the fuse on the control board constantly blows? Most of the time I have found that shorts occur in the thermostat wires that go out to the outdoor condensing unit. Wear and tear of sun light, animals or weed eaters usually cause these shorts. I would suggest inspecting the thermostat wires for cracks, wear and tear. Pay close attention to where the thermostat wires go through the body of the furnace or air conditioning unit. Many times the thermostat wires will short out against the body of the furnace or air conditioner. I found this real good Youtube video on how to find low voltage shorts by ACservicetech. I hope this great Youtube Video will help you out in finding where the short is located. Thanks so much to ACservicetech for making this great video! If you have any questions please email us anytime: email@example.com
Problem: The pilot on my furnace will not stay lit after we had a new roof installed. The only changes I’ve made are: New cheap $1.58 furnace filter (30-day) Ace Hardware, New roof and New roof vents (my attic is SO windy compared to before) Maybe the roofers disconnected the furnace vent in attic and it’s causing a back-draft? Thanks greatly for any help. I’m very desperate! Lori
1. Many times the roofers knock, sand off the shingles, dirt or rust on to the burners or into the pilot light and the pilot and burners need to be cleaned to work and burn properly. You should have a nice blue flame that encompasses the thermocouple. If the flame is not blue or not strong you probably need to clean the pilot. If the pilot is yellow the pilot needs to be cleaned.
2. Rust or dirt that falls on the burners can cause delayed ignition which would be like a mini explosion when the furnace tries to light. This could cause the pilot to blow out when the furnace ignites. This usually happens when the furnace tries to light after it has been off for a while (furnace is cold).
3. Check the furnace when the burners are on and make sure they are fully burning a blue flame from the front to back all the way. If not then the burners might need cleaning, the vent could be stopped up or if not burning properly only when the blower is on then this would be a sign of a heat exchanger leak.
4. Check to make sure that the hot gas is all going up your vent stack through the roof by feeling around the bonnet where the vent attaches to the furnace. If any heat is coming out around the bonnet when the gas is burning on your furnace then your furnace is not venting properly and you need to turn it off because this can be dangerous. Need to get the vent fixed.
5. The furnace and water heater vent as you know should run a couple of feet above the roof and not terminate in the attic. This is dangerous if it vents up in your attic. I could cause a fire or allow carbon monoxide into your home.
I hope this gives you some things to look for. I hope you can easily and inexpensively find and fix the problem. I hope all that the furnace needs is a good cleaning. Thanks for asking this question!