Question about Heating & Cooling
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Posted on Jan 02, 2017
If you have a volt meter, remove the thermostat off from the mounting plate and check for 24 volts AC across red (R) and White (W). Then check across Red and Yellow (Y). If you do not find any voltage, follow wire as much as you can all the way back to the air handler that is connected to it. Look inside and see if there is a small Auto (car) type of fuse in the wiring harness. Test and replace if necessary. Jump out the Red and Green terminals on the air handler and replace the door. See if the blower turns on. If so, you have narrowed it to the wiring to the thermostat. If not, you have a power problem and will need a technician.
Posted on Sep 28, 2007
Try to check the remote control by using camera or cell camera, just use it as your eyes to see if the remote control emits signal. Just point your remote control to the camera and "on" then check if the remote control emits light, if no emitted lights means defective remote but if emit lights then the receiver is defective . Try also to locate if there are any reset or rst button on the remote control and press it then test.
Posted on Jan 10, 2009
SOURCE: Blown Transformer heat pump
blown transformers are usually from a low voltage short the first thing i would do is wire a automotive or resetable 3amp fuse in line with the transformer so you dont blow transformer after transformer the wire coming off the transformer that say 24v take that wire a couple of inches down and cut it and install the fuse in series there
now you can go through your low voltage wires one by one and test them unhook all the wires to your outdoor condenser at your indoor unit(furnace or airhandler) and try turning it to cool now if you blow the fuse the short is between the tstat and the indoor unit if the fuse is still good leave it on cool and hook up one wire at a time to your outdoor unit starting with R a lot of times your contactor or your defrost board will short out on you also look for pinches in wires wires with cracks in the insulation and wires touching metal this situation can be a real pain sometimes i would recommend calling a hvac company if you start to get stumped
hope this will help you
Posted on Jul 26, 2009
I fixed this myself by upgrading to an Advan Touch unit. Details here: http://www.casablancafanrepair.com/HTMLFiles/ do_it_yourself/ComfortTouchCommonRep/CTToItConvert6-12- 07Web/SM_CTToAdvanConvert_P1.htmI purchased the P-RMM CT to AT Converts Comfort-Touch to Advan-Touch upgrade kit from http://www.fanmanlighting.com/shop/pc/viewPrd.asp? idcategory=56&idproduct=966The fan man was helpful and my parts reached me in 2 days, normal shipping!
Posted on Jan 04, 2010
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