Question about Heating & Cooling
Switching it on and off
Transformers usually do that, but if it is in an area with moist, humid air or its old then you should replace it.
Posted on Dec 11, 2014
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Posted on Jan 02, 2017
well it has blown the fuse on the transformer, then you have coil switch bad.It could be the coil on the contath in for cooling.But can check by taking the yellow wire a loose and see if the don't blow. The red wire is one side of the transformer and the com could be any color.But look at the red wire because it is the main wire that travel the voltage throuhg the unit.
Posted on Mar 26, 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
SOURCE: I need a wiring diagram
This is the only site which provides wiring diagram related to Coleman.
Coleman does not provide any online diagrams...
For 24 volt transformer:
For RBM relay:(Common not specific to Coleman)
Hope this can help you.
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Posted on Sep 01, 2010
The transformer is burnt out... you will need to replace it... this is common and they burn out easily if a low voltage wire it shorted even for a split second, or if there is a brown out...
They best way to prevent this is by installing a 5 amp fuse ahead of the transformer in the high voltage line so that it blows before the transformer goes...
Posted on Sep 08, 2010
SOURCE: what are the tolerances of
Hello, a 24 volt transformer can handle a tolerance of about 10% or just a little under. The important thing to remember about transformers is to always replace one with the same VA rating ( VOLT-AMPERE)
Posted on Feb 18, 2011
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