Question about Heating & Cooling
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Posted on Jan 02, 2017
SOURCE: Wiring Diagram
here is a basic wiring diagram for all air cond systems your thermostat consist of treminal r w y and c run a four conductor wire fromm thermostat to ai handler the air handler should allso have eather have red blue white wires or a teminal block marked r w c r stands for red w for white c for comon allso blue run color for color from the thermostat to ai handler with exeption of yellow yellow runs straigth to condenserand retuns in white wire to air handler wich gets conected to comon hope this help[s you
Posted on Jul 23, 2008
I'd look in one of 2 areas.
1. often there is a central return in the house. This is the place where the air gets pulled back to the unit and is likely very close to your thermostat. Check for a filtered louvered grill there and see if your filter is located here. If so, you can access the filter by opening the filter frame with a screwdriver or even a coin.
2. Otherwise I would expect that your filter is on the return-air side of your air handler (where the blower is) Older models have the filter actually inside the air handler in the blower compartment. Newer models may have a small separate filter door. I'd look in these areas.
hope this helps
Posted on Mar 21, 2009
you may have airflow issues, verify the inlet and outlet temps with the unit running on start up, if the unit exceeds the "rise" allowable then the safety devices "overtemp" will take the firing circuit off line until it cools down. The acceptable mfg. rise is listed on the nameplate inside the burner chamber, (generally on the side wall)
Posted on Jul 20, 2009
1) you probably have a clogged drain line and
2) your air handler coil may be dirt.
1) Using a dry/wet vacuum cleaner, attach it to the drain line outside and **** all the gunk out of a drain line; or using a water hose, attach it to from inside right by the air handler and push the gunk out with the force of water - be careful using this method. Or simply pour draino into the air handler pan, wait for 10 minutes and using a cup pour water in the pan to see if it drains fine.
2) if the coil is dirt and it ices up, call a technician to for coil cleaning.
Posted on Oct 12, 2009
SOURCE: My system uses a permenant
The Ruud UBHC-21J18SHG has a nominally 21" cabinet width. So the needed filter is 19.75" x 21" x 0.375" (502 mm x 533 mm x 9.525 mm). The Ruud part number for the filter is 54-23217-03 .
The specifications sheet for the Ruud UBHC series air handlers is available here: http://www.coburns.com/images/PDFs/h22-517rev1.pdf . The filter size information is on page 3 and page 12.
I've found the filter at one online vendor: http://www.patriot-supply.com/products/showitem.cfm/RHEEM_68_101807_03 . (This is a common filter that fits several manufacturer's air handlers.)
I hope this helps.
Posted on Sep 11, 2011
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