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We need to know how to wire the rth230 programmable theromstat

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Is it a heater and Air conditioner?

Posted on Oct 06, 2010


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What wires coming from the theromstat conect to which wires coming out of the wall

suggest this: hire a technician to fix it for you. you would need the wiring diagram for the thermostat and to find which wires go where in the wall.

this is a task that is normally beyond the ability of an owner. It requires some technical knowledge of thermostat wiring, as well as using a voltmeter.

you might post an ad to locate another owner of your model RV, then ask them to pull the thermostat off the wall and take some pictures to send to you - showing the wiring connected.


Oct 27, 2016 | RVs

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Hey i have a 1990 seville has no heat fan blows good changed theromstat and has good heater core but still will not blow hot air any ideas

Hello: You need to remove the passenger side glove box. Behind it you will see the HVAC programmer. On the top you will see a silver linkage that goes from the programmer to a linkage on top of the HVAC case. That linkage attaches to the air mix (temperture) door. withe car running and climate control on move the temp setting from 60 to 90, the linkage should move. If it doesn',t Reach in and with your fingers move the linkage, if it moves (toward the driver side) then that means you have a bad HVAC programmer. You used t be able to get a new actuator motor and repair the programmer but I don,t know if its available anymore or not. The actuator was a high failure item. Note: HVAC stands for "HEATER VENT AIR CONDITIONING" If you secure the linkage towards the driver side you should get heat but no automatic control or no way to reduce the amount of heat but you would have heat till you find the part.

Jan 11, 2011 | 1990 Cadillac SeVille

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I have a Y plan heating/domestic instalation.The boiler will go off and on even if the programmer is off,If the programmer is off and I turn the cylinder stat up the c/heating pump will run,i recently...

Hi the cylinderstat controls the hot water only not the heating the boiler stat controls the water temp the room theromstat controls the rads , if you have one ,

so boiler stat set on 180f or number 5 cylindersat set on 140f to 120f roomstat to your comfort , the boiler stat works as a over heat so if the cylinder stat or roomsat fail it will turn off on the boiler you should beable to check wiring from that .

Mar 10, 2010 | Heating & Cooling

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My honeywell theromstat is stuck on HOLD 62 degrees and when I not turn on or go higher no matter how higher i push the heat

the honeywell theromstat is life time so no matter what happens you can call any hvac company and ask them it does sound like your batters are going dies are also you need to get your line check now i dont know if you have it on two wire are all four just maybe it could be that you need to get that look at

Dec 10, 2009 | Honeywell CT3200 5-2 Day Electronic...

1 Answer


when programming the thermostat, you must program each day of the week, then sat / sun , next program for morning day anf night, set temp and then push run program button

Oct 18, 2009 | Honeywell Programmable Thermostat Heater

1 Answer

My honeywell theromstat keeps displaying repl bat

Have you checked to make sure the batteries are, in fact, good and that they are facing the right way? If so, it's time for a new thermostat.

Oct 03, 2009 | Honeywell Programmable Thermostat Heater

1 Answer

RTH230 thermostat, want to run fan only.

There is a switch labeled FAN with positions for Auto and On. Move the switch to On. For an owners manual go to

Jul 09, 2009 | Honeywell Programmable Thermostat Heater

1 Answer

Replacing Old York TS to HoneyWell RTH230B

rh is hot for heating rc is hot for cooling looks to me like ya need a heat pump stat some thing to control the reversing valve.Tom

Jun 18, 2009 | Honeywell Electronic Programmable...

1 Answer

HONEYWELL THERMOSATAE RTH230 HOW IT PROGRAMME With the model # should be instructions on in side cover.

Jun 15, 2009 | Honeywell Heating & Cooling

1 Answer

Heat will not turn off

Call 1-800-341-0110, Honeywell Residential tech service.

Nov 11, 2007 | Honeywell Programmable Thermostat Heater

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