Question about Heating & Cooling
I have replaced all sequecers and blower relay, my furnace heats up but the blower wont come on. i am pretty sure its a wiring problem i need a clear dagram of how to do this. it will blow when you turn it to "on" but nothing on "auto"
The fan relay should isolate the 2 speeds hi & low use for cooling & heating. Normally closed should be the low speed, and normally open (closed when the relay is energized) should turn on the fan in high speed. Make sure the fan (isolation) relay is wired correctly.
Posted on Nov 23, 2014
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Posted on Jan 02, 2017
Sounds like a downflow electric furnace? If so it sounds like you have 15kw worth of electric heat, you might have a defective heating sequencer, witch is what they call a dual on one plate.
Posted on Nov 28, 2007
SOURCE: Furnace Blower Motor Specs
That information is usually on the data plate on the furnace and on the motor itself. All you need to know now is the HP. Other than that a universal consolidator motor is an easy fix too. It can handle 1/6-1/3HP.
Posted on Dec 18, 2007
the hot serface igniter may nead to be replaced again . if the is a lack of air
[ have this checked} getting to and frome the furnace it may be causing the furnace to cycle off the burner duing call for heat. it recycles back on and off untill the thermostat is saticfied. this means you are reusing the igniter more often the once a call for heat . therefore shorening it life expectancy.. make shure you are not blocking the air flows with over filtering ..whitch i have found to be the most common mistake . this and not changing or cleaning air filters often enough.
Posted on Oct 20, 2008
It is normal. Your house has to go down a couple more degrees because the heat pump is not working. You can solve this by rewirng you thermostat. Take off the wire that goes to Y and tape off. Then take the wires that are marked w and e or w1 and put the wires to yellow. Do not run ac with it wired like this. If you need more information please post me back
Posted on Nov 29, 2008
SOURCE: 24v wiring for RHEEM heat pump
Brown wire connect to com C on terminal block in your furnance (0VAC from 24VAC transformer)
Yellow turn on compresor (hot wire from 24VAC Transfrormer)
Blue switch Valve from AC to Heat (hot wire from 24VAC Transfrormer)
Purple prevent starting compressor in Heat pump and furnace in same time
Posted on Aug 28, 2009
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