Gas and Oil Home Heating Furnaces - Furnace makes noise before and sometimes during Blow cycle
Doityourself.com community forum was created to provide answers to all questions related to home improvement and home repair. Doityourself community can help you find information about how-to topics on small fixes to large remodeling projects. With comprehensive how-to content and expertly moderated community forums DoItYourself.com makes it easy to tackle even the most complex home improvement projects.View Full Version : Furnace makes noise before and sometimes during Blow cycle
jspears421
12-22-04, 10:08 AM
I have an older Carrier Gas Furnace, the model number is 0585EC125-3. In the early morning hours and sometimes in the evening, the Furnace makes a loud "Grrrrrrrrr" sound, as though someone is moving heavy furniture accross the floor. The pilot light works and the burners seem to be burning properly. I suspect that it may be the blower, but I cannot be 100% sure.
Yesterday, I had a technician look at the furnace and of course the furnace was quiet and he informed me everything looked fine. However, later that evening it began again and then this morning.
Can someone tell me what troubleshooting steps to take to make this determination if it is the blower or not? Could it be the Thermastat?
If a blower unit has to be replaced is it usually feasible to do so, or should I look at purchasing another furnace?
Last question, what percentage of total cost of replacing a furnace is labor charged?
Any help would be appreciated.
Yesterday, I had a technician look at the furnace and of course the furnace was quiet and he informed me everything looked fine. However, later that evening it began again and then this morning.
Can someone tell me what troubleshooting steps to take to make this determination if it is the blower or not? Could it be the Thermastat?
If a blower unit has to be replaced is it usually feasible to do so, or should I look at purchasing another furnace?
Last question, what percentage of total cost of replacing a furnace is labor charged?
Any help would be appreciated.
mattison
12-22-04, 11:00 AM
Going by you numbers it looks like that furnace was built in th 5th month of 85' and is a 125,000 btu.
If thats right it's not far from the end of it's lifespan.
The noise you describe could very well be bearings in the blower motor or draft inducer motor if equipted.
At the same time though it could be a gas pressure problem. It would help if you could be at the furnace with the cover off when it acts up.
If it's in good shape I wouldn't hesitate to put a couple hundred bucks in it but not much more.
I haven't done my own business in several years but I know a few here still do so I can't help with the labor rate vs parts rate. I'de take a wild guess and say 60% - 70% is labor. But I may be way off.
If thats right it's not far from the end of it's lifespan.
The noise you describe could very well be bearings in the blower motor or draft inducer motor if equipted.
At the same time though it could be a gas pressure problem. It would help if you could be at the furnace with the cover off when it acts up.
If it's in good shape I wouldn't hesitate to put a couple hundred bucks in it but not much more.
I haven't done my own business in several years but I know a few here still do so I can't help with the labor rate vs parts rate. I'de take a wild guess and say 60% - 70% is labor. But I may be way off.