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MY ROBERTSHAW thermostat want work when iturn the heat to auto, but my cool does the heat only works when its on fan can you help me?

D87011 87013 30volts A.C. MAX #6243260 SB64-5ABO 65A-473-765B SUB BASE cust. 9031840 AMP.0.2-1.0 E2 ELECTRIC FURNACE-NORDYNE

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Posted on Jan 02, 2017

ngafm
  • 166 Answers

SOURCE: coleman mobile home electric furnace

Peace,




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ngafm
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Posted on Sep 07, 2008

meBNme
  • 334 Answers

SOURCE: Bad sequencer or fan relay?

does ANYTHING come on when set to heat?

Posted on Mar 06, 2009

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My termost set to a/c, the fan auto, blow very well, but when I switch to heat and the fan auto, doesn't work, but if I put fan on work why?


the thermostat says to call for heat buildup in the work if its not cold enough the thermostat won't call for heat and I won't go on but when it gets cold and the thermostat set to the temperature you want or hire someone that doesn't cycle

Oct 12, 2014 | Heating & Cooling

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Robertshaw 9420 thermostat engages inside fan in OFF position


check with the company u brought it from and check if you have not put the correct conector to the right temals on the back of the switch.

Jun 09, 2009 | Heating & Cooling

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Robertshaw 9600: Temperature rises too high, fan doesn't stop.


It sounds like the thermostat is wired improperly. One quick was to check is by finding breaker to unit and shutting off power. Go to thermostat and remove from wall take all wires off thermostat besides wire going to R(might be RcandRh) and C(which is common) Tape all bare wires removed with electrical tape. Now go back to the breaker and turn power back on. Nothing should be running at all. Take a voltage meter and measure the voltage from R to W(which is heating). If you read 24V then the thermostat is open and not calling for heat. Now turn the thermostat up so it is calling for heat. You should read 0V from R to W. If this checks out your thermostat is probally fine. You can check the fan the same way by going from R to G. In auto you shoul read 24V from R to G and in th on postion you will read 0V from R to G. If the thermostat checks out then the problem is probably at the furnace or rooftop. Either with the thermostat wiring or the main board acting up

Jan 19, 2009 | Heating & Cooling

1 Answer

Thermostat problems


Have you confirmed that the thermostat is programmed correctly?

Did the thermostat ever control the temperature of the house properly?

When you indicate "kick", are you talking about flipping the Auto-On switch back and forth? The Auto-On switch only controls the fan, and no heating or cooling (Auto - fan runs on call for heat or cool, On- fan runs all the time.).

If "kick" means making the heating work, and if you have the same problem for making the cooling work, chances are good you have bad thermostat.

If the problem only occurs with the heating, and cooling works fine, then the problem could be in the controller board of the furnace, assuming you have a more recent (1990's or newer) furnace.

Jan 16, 2009 | Heating & Cooling

1 Answer

How to work my thermostat


Fan switch should be on auto in the heating mode and on in cooling. Contact the manufactuer on line for a new manual for this thermostat.

Ray

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