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!
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: firstname.lastname@example.org. 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: email@example.com. 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:firstname.lastname@example.org 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: email@example.com. 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: firstname.lastname@example.org
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!
Water under the cooling coil can be caused by several things. (1) Most of the time it is caused by a stopped up condensate drain line and you should be able to blow compressed air through the line or take a wet vac and suck on the end of the condensate line to clear the clog. In severe cases sometimes the condensate line has to be cut with a saw or PVC cutter to remove the clog. I have also had to remove the evaporator coil covers to get to the coil drain pan and drain pan opening in order to clean the coil drain pan and condensate drain opening with a wet vac to get the coil drain unstopped and clean the coil drain pan while I have the evaporator coil open. I would suggest testing the coil drain pan with water by pouring water into the coil drain pan with a cup or bottle to make sure the drain is open before closing the evaporator coil back up. (2) Sometimes coil drain pans develop holes and you would need to repair the leak in the pan by using epoxy of silicone caulk. I would try to make sure the condensate drain line is open before checking to see if the evaporator coil drain pan is leaking. If the condensate drain line is open and you are not getting any water or not much water out of the condensate drain then more than likely you have a hole in the condensate drain pan. I have tried to repair the pans before with epoxy and silicone, but most of the time this fix will only last one or two years. If you have a leak in the evaporator coil drain pan I would recommend replacing the entire coil. Repairing the drain pan can be time consuming and like I said usually does not last long because the coil pan has probably deteriorated in other places. Most of the time the entire evaporator coil has to be removed to do the repair. I some cases I had my sheet metal man make a new coil pans, but removing the old coil with all the movement, screwing on a new coil pan and heating the refrigeration lines to reinstall the coil after the new pan has been installed can cause refrigerant leaks. In my opinion after many years it is best to get a whole new evaporator coil and be done with it. (3) water on the floor around an evaporator coil or furnace can also be caused by a system being low on refrigeration charge and freezing up because of being low on charge or having poor air flow. Most of the time if a coil freezes up it is caused by a low charge, but I have seen cases where a dirty filter, dirty evaporator coil, or slow blower motor (might need a new motor capacitor) have caused evaporator coils to freeze up melt and cause water on the floor. If your coil is freezing up I would suggest checking anything and everything that could cause poor air flow across the coil and if everything is clean call a service tech to check the refrigeration charge in your air conditioning or heat pump system. I hope I have given you some things to look for if you find water on the floor around the furnace or under the air conditioner air handler. If you have any other questions please ask anytime. Our email address is: email@example.com
I wanted to post this because many people are telling me that they are sucking on the pressure switch tubing to test pressure switch operation. I have heard from other forums that you should not suck on the pressure switch to test it because this can damage the diaphragm inside the pressure switch. It would be best to use a manometer or test with a volt meter like we advise on the following page: https://arnoldservice.com/how-to-test-and-troubleshoot-gas-furnace-pressure-switches/ I wanted to pass this along so others will not damage pressure switches. Please feel free to comment below.