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Just moved a robershaw thermostat that controlled

Just moved a robertshaw thermostat that controlled a tempstar pa5536aka4 and now it seems to blow only warm air. any suggestions

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  • rondab64 May 13, 2009

    Thank you for your interest. We discovered the problem shortly after I posted the question. An overlooked staple was causing a short. We had checked for that, but managed to overlook one. Thanks though.

  • Dennis Boxerman May 11, 2010

    How many wire does the t'stat have? What are the colors and what terminals are they hooked up to on the t'stat or sub base.



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Check the wiring making sure that the rc/rh have a jumper or individual wires for power

Posted on May 10, 2009


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1 Answer

Can I replace my robertshaw thermostat 9420 with an Emerson 1F83-0422

Robertson 9420 is a multistage thermostat designed to control 24V heat pump systems,while the Emerson does that and more. So it seems it should be a possible replacement. However, the wiring may be more complex, depending on the layout and system.
Here is the info on both:



Feb 15, 2017 | Emerson Heating & Cooling

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The indicator light stays on our PVS50 water heater.

You have the Robershaw wiper gas control valve.
Here are error codes and troubleshoot table for that gas control.
Here is general service manual for power vent water heaters.
Here is general parts list for that water heater, 2009:

If you need further help, I’m available over the phone at

Aug 20, 2012 | Rheem 50 Gallon FVR NATGAS Water Heater...

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Heatilator gcdc60 won't turn off unless I disconnect one of the thermostat lead wires or I move the control know on the Robershaw 7000 valve to "off". It burns fine, and fan comes on when it is...

From everything you tried to cover, the problem lies in the wall thermostat. Repairing it isn't a good option. Replacing it is fairly inexpensive to do. Just make sure you replace it with one of the same voltage. Or if it's a millivolt control valve on the heater, make sure the replacement is for millivolt operation.

Hope this helped you solve the problem.

Apr 25, 2011 | Williams 2509612 Ceramic Mid-Size Heater

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Tempstar High efficiency 5000 It is not blowing enough cold air

if the unit has cooled fine in the past then it is most likely dirty you need to look at the return side of coil,you may be able to look thur your return grill.if it is dirty it is best to call a a/c service company to clean it for you,what ever you do,Do Not clean with a brush it can damage the coil and cost a lot to replace.also check your suction line at outside unit,it the big line it should be sweating if not it can be low of freon. Average cost to pull and clean a coil is about 375.00 no more then that.

Aug 12, 2009 | Ruud Central System Air Conditioner

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No display on Robertshaw 9600; unit seems dead/furnace works

have you checked to make sure you have a fresh battery in it

Jul 25, 2009 | Shaw Robert RS-9420 Thermostat

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RobertShaw Thermostat 9600 problem

verify if you have separate units for each floor.

the ones working could be a complete separate unit from the one having problem.

look at the condensing units you got outside , how many are there?
if you have 3 units outside and you have 3 thermostats, then each thermostat is controlling individual split units.

we have to concentrate on the one that is not cooling. give me the details on what is going on with problematic one.

is the outside unit running?
is the outside fan running?
can you distinguished if the compressor is running the same time as the fan?

tnx 4 using fixya,


Sep 14, 2008 | Heating & Cooling

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