HiCustomer Thank you for asking your question on Just Answer. The other Experts and I are working on your answer. By the way, it would help us to know:-Could you explain your situation a little more?
What is the make and model number of the furnace?When was the last time the furnace was professionally serviced?What is the age of the furnace?What fuel does the furnace use?What have you tried to correct the problem?Do you have a digital camera that you could use to send pictures of the furnace if needed?Thank you again for trusting us with your problem.
Please reply as soon as possible so that we can finish answering your question.
Gas heater maintenance and troubleshooting
Trouble shooting a furnace
If this information does not help you correct the problem let me know and I will continue providing you the information to fix your furnace but then a picture of your furnace with the service door removed will be very helpful.
Should you require further clarification, never hesitate to ask. It would be my pleasure to clarify my answer to your question. If after reviewing the above information, you have additional questions, I will be glad to answer them. My goal is your 100% satisfaction with all questions I answer. Please click the green ACCEPT icon if you feel I have given a complete answer, and you are satisfied with my answer. Positive feedback and bonuses are always greatly appreciated!Regards,EdwardAs always when using Just Answer your accept is required for me to be paid.Please do not accept unless you are 100% satisfied with the answer.If you accept my answer please leave feedback.
Do you have a digital camera that you could use to send pictures of the furnace if needed?
Does your furnace have a draft inducer? This is a small blower that comes on before the burner will be lit.
A pictures of the inside of the furnace with the service door removed would be great. They can be posted here if you have the advanced tool bar available in the box that you type in. Image of the tool bar below.
You would need to click on the green icon that looks like a tree. If you do not see the tool bar you will need to click on the tool bar icon at the top of this page and select edit profile. From there you have the choice to check the advanced posting tools which will display the tool bar. The flame sensor on your furnace also has the spark igniter tip on the part. The flame sensor does need to be kept clean or it can cause the problem you are experiencing. ANy deposits that are present will need to be removed with an abrasive like sandpaper or a wire brush. Once I get the images I will be able to provide you other information. Before the flame goes out, do you notice any movement or change it the color of the flame ?
Well, I figured out the problem and I'm feeling pretty silly right now. I have an AirMedic filter that I just clean and put back in rather than disposing and replacing with a new one. When I last removed it about 2-3 weeks ago when I had been have this problem for about a week, it was quite dirty (probably because we have a dog now), and I thought that might have been the problem. I took the filter out and intended to clean and replace it, but never got to cleaning it....so there has not been a filter in for 2 weeks when I was thinking the cleaned filter was in. So today I finally realized the filter was not in and I cleaned and replaced it. Wuddyanow.....it works fine......and I feel like a complete fool. I can anly guess that with the dirty filter there was not enough airflow so the high temp blower sensor shut things down repeatedly....and then without the filter in the blower was able to move too much air and the low temp sensor shut it down. Does that make sense?
I want to thank you for your help and links to furnace operation. It helped me learn quite a bit.
I also wondered what you think would/should be included in a complete furnace cleaning/servicing, and about how much it would cost from a furnace/air cond company. It has been a long time since ours was serviced.
Thanks again. If I have future plumbing/electrical/general handyman questions, is there a way to direct them to you?
Yes, I believe you have described the problem very well. Normally service would include clean and lubricate the blower assembly, the pilot light assembly and the burners. In addition the bearings, the belt if applicable. Check for gas leaks and a cracked heat exchanger and the duct including the chimney. Since you indicate you have animals it is often advisable to have the air ducts cleaned. Something many people do not think about until there is a problem is the A coil and the coils in the unit on the outside for the air conditioner. These should be cleaned to insure efficient operation of both the heater and air conditioner. You can expect to pay $100 up depending on how much is done.
Many homeowners do not realize, the complications of not having a professional inspect the heating system yearly, can cause. If a fire, or worse, is caused by the furnace and there are no records of the furnace being maintained, the insurance company can and will deny the claim for damages. I have worked on systems after they have caught fire and the homeowners got no help from their homeowners insurance for the damage. I have installed furnaces in new homes that the owners were building to replace a home that was destroyed by fire from not having the furnace serviced. I like every customer to have this information to consider before repairing the furnace themselves.
Thanks for the accept. If you have additional questions I will be glad to answer them. I hope you will return to Just Answer again. Please tell your friends about Just Answer. In the future you can request me personally if you wish. Positive feedback is very important to me. Please leave feedback when you get a chance. Click here if you wish to leave feedback. There is no need to reply to this post unless you have additional questions. It will only generate a request for me to reply to your post. Regards,Edward