|
Posted by Joerg on December 5, 2007, 4:17 pm
Tim Zeifer wrote:
> I have been having an intermittent Rheem air conditioner/
> heater problem. The blower won't shut off unless I cut
> the main power. The furnace shuts off fine. Switching
> off the fan or anything on the thermostat won't shut it
> off. The technician says that they won't repair it unless
> they find it dead. By the time the technician arrives the
> AC is working again because it usually fails at around
> 1-4AM then resumes working again at 5AM.
>
> I am now deciding to replace the parts myself but
> need some help. I'm not certain but I think the
> symptoms point to the blower relay D7 or the fan
> cycle control switch F7 on this schematic diagram
> http://www.freewebs.com/acrepairs/RHEEM.jpg.
>
> Where is the fan cycle control switch is located in the
> Rheem heater - is it inside the furnace?
>
Don't know the Rheem brand but usually it's the fan/limit module either
being set too low for the shut-off temp or the module is broken.
Considering that it's cold this time of the year the chance that it's
broken is high. This link seem sto explain it pretty well:
http://toad.net/~jsmeenen/blower.html
--
Regards, Joerg
http://www.analogconsultants.com/
| 
Yahoo! 
Google 
Windows Live 
del.icio.us 
digg 
Netscape 
XML Sitemap