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JRE1-0050-IAA-202 electrical diagram for thermostat to compressor

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I have a 5-ton Nordyne heat pump. The compressor has quit working. How can I get the emergency heat strips to come on using emergency heat on the thermostat.

Your thermostat should have an emergency heat setting. Putting the thermostat in that position should make the electric heat strips only work and keep the compressor from coming on. If your thermostat doesn't have an emergency heat selection disconnect the compressor outside at the power source. Turn the thermostat 5 degrees Above the Rim temperature the electric heat strips should come on.

Jan 02, 2018 | Heating & Cooling

1 Answer

My fridge freezes everything on the bottom, it never stops, I had to disconnect because everything was frozen

Testing the Thermostat for Electrical Problems Again using the wiring diagrams, determine which of the wires coming from the thermostat supply the power to the compressor motor's start relay switch. To check the thermostat, you will need to take a continuity reading through the thermostat's main contacts. To do this, set the function on your DMM to the R X 1 function, insert the test probes into the holes on the harness plug associated with those wires and rotate the knob on the thermostat through its full range. In the thermostat's "OFF" position, the meter's LCD should display an "O.L." and then, as you rotate the knob clockwise, the LCD should display a "0.000" if the thermostat is functioning properly, electrically. If you get a "0.000" reading even in the "OFF" position, the thermostats internal contacts are stuck in the closed position, and you need to replace the thermostat.
Defective Temperature Sensing Tube If the thermostatic control checks out electrically, the problem lies with its temperature sensing tube or bulb. This tube contains a gas which condenses as it get cold. As the gas volume decreases, the spring loaded contacts open, shutting the compressor off. There is no way to recharge the sensing tube once it has lost its charge, so you will have to replace the complete thermostat control.

Apr 03, 2015 | Refrigerators

1 Answer

Will a 6 x 8 norlake freezer with cold pack unit above operate with 202 volts

The compressor will most likely not go on if the compressors capacitor does not get enough power to kick start the compressor motor. It sounds like one of the 120v lines is loose, burnt or corroded some where from the inside the panel to the connections inside the unit causing a voltage drop. If it is, you are looking at a fire hazard.

Oct 03, 2014 | Dryers

1 Answer

I am trying to replace my old thermostat with a programmable one, but the wiring diagram on the new one does not incorporate all of the wires that are currently attached. Please help.

The existing connections are O, R, Y, G, C, E, W2. Yes you will need a thermostat designed for the electric heater coils as indicated by the E terminal. The W2 could indicate a second stage cooling compressor.

Mar 05, 2011 | Honeywell CT87B ROUND HEATING&COOLING...

2 Answers

How do I wire a central heating room thermostat

You didn't mention if you had electric heat or gas heat. If you have electric heat you must move a wire on the thermostat to make the fan come on. Most all wall stats come ready for gas heat. No need to make a wire change for gas. Anyway I have a diagram of a typical central unit HERE

Nov 19, 2010 | Heating & Cooling

2 Answers

Chest freezer not used for many years will not run now. Seized compressor? Can this be "unseized?

May be possible but most likely electrical, turn it on for 1 minute, listen for any clicks, turn it off, feel the compressor, if it is seized it will be warming up, if cold the problem is electrical quite likely the thermostat.

Apr 17, 2010 | Amana ABB1921DE Bottom Freezer...

3 Answers

Freeezer with no compressor activity

If all fans are running, but not compressor You could try to install 3 N 1 start kit, thats might help 50/50. If it will start compressor - be ready for compressor to go out soon. might work for a year.

Dec 13, 2009 | Kenmore Freezers

1 Answer

Compressor not switching off

You still have the main power going to the compressor. Make sure the power goes through the thermostat before it goes to the compressor.
Check with bosch dot com for a wiring diagram, with colors and numbers.

May 25, 2009 | Bosch Refrigerators

1 Answer

Can I bypass ac compressor

You can go to an auto parts dealer.They sell a bracket with a pulley that takes the place of an a/c compressor and allows you to use the same size belt It's available at a place like NAPA or Autozone.

Feb 25, 2009 | 2002 Ford Windstar Cargo

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