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Is the display blank on the thermostat because the RUUD stpped working, or the thermostat is not working?

I have a RUUD UAMB-036JAZ. It doesnt run anyore. Also the thermostat went blank. Carrier thermostat CFTCHCCPUISA2-GEN ( The breakers are on. I switched them on and off couple of times) I dont know if the AC stopped working first or it is a thermostat iissue. It is my understanding that if AC line voltage disappears completely, the display will turn blank.

Posted by Val Andrei on

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william simpson

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  • Carrier Master
  • 1,363 Answers

Check fuse protecting low voltage transformer.

Posted on Aug 18, 2015

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5 Related Answers

Anonymous

  • 540 Answers

SOURCE: AC breaker trips after 10 minutes

Whats the amp breaker? Is this for the inside unit or the outside condenser? If the inside and gas heat you have a bad fan motor, If its an electric furnace , the same, but if its the outside unit, the fan could be going bad, locking up and the compressor still runs and pulls high ampsand tripps breaker or the compressor is just pulling too many amps due to plugged coils with dirt , grass or weeds blocking airflow.([email protected])

Posted on Jun 09, 2008

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Anonymous

  • 40 Answers

SOURCE: I have a Carrier 38tra048340

Blank screen sounds like a fried thermosat. Abrupt outages can affect certain types of thermostats. Make a jumper wire and jump across R and G. See if you get any action from anywhere. If a fan or compressor kicks in you know you have a burned out thermosat...

Posted on Jun 23, 2008

ferny buentello

  • 33 Answers

SOURCE: carrier central airconditioning heat unit - breaker trips when cooling turned on

well mineswas a blowen compressor

Posted on Jul 19, 2008

Anonymous

  • 24 Answers

SOURCE: ruud heater will not light consistently

Your furnace is going into a lockout condition, cycling the power resets the circuit board and it starts over. I will need to know approximate age and model of your furnace, it sounds like you have need to clean the flame sensor rod. However i need to know what i am working with.

Posted on Dec 18, 2008

Anonymous

  • 16 Answers

SOURCE: The outside fan motor (OFM) will not turn off.

You probley have both power wires hooked to the bottem or power side of the contactor switch, one should be pluged into the bottem of the contactor, and one to the top, so when the switch opens, it breaks contact between the two wires (turns motor off).

Posted on Jul 03, 2009

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1 Answer

I have a RUUD UPKA-036jaz heatpump. Anytime the thermostat is set to heat, the reversing valve coil is energized. Even if the unit isn't running. Is that normal?


Most heat pump reversing valves energize in cooling. Does it ever "deenergize". If not its stuck, if it does check programming, may be setup to operate that way. Or possibly wired wrong or wired as straight cool. To answer your question, i dont think that is normal.

If you need further help, reach me via phone at https://www.6ya.com/expert/thomas_092728000e6acb79

Nov 08, 2016 | Ruud Heating & Cooling

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Uamb-048jaz ruud a/c stopped working what should i check


is outside fan running tells you if contactor is made if so change capacitors on compressor. if not running check transformer,& thermostat.

Sep 01, 2013 | Ruud Heating & Cooling

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Exterior fan motor replacement


i would replace its run capacitor first.

Jul 04, 2013 | Ruud UAMB Air Conditioner

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I have a RUUD gas pack unit.....when you turn on the heat, the blower does not blow any air out of the vents while on "auto". If you put it on "on" it blows cold air out of the vents. What is wrong?


Sounds like the thermostat is hooked up wrong. If the ac doesnt work right its in the thermostat programming or the wiring. Hope this helps good luck

Jan 13, 2013 | Ruud UAMB Air Conditioner

1 Answer

Uamb 036jaz


The evaporator coil is probably frozen too.The fan might of failed and it caused the evaporator coil to freeze along with the suction line. Based on what you said about hearing a noisy blower motor noise. I believe the blower motor failed and caused your problem.There's only a few things that cause freezing; 1. blocked or no airflow 2. low or loss of refrigerant. You have no airflow, most likely because of a defective blower motor.

Aug 28, 2012 | Ruud UAMB Air Conditioner

2 Answers

I don't have a problem with my product...im trying to find out how many watts do my product use. Model #uamb-036jaz serial #6263f040410617


Brand: RUUD Manufacturer: RHEEM Model Number: UAMB-036J* Condenser Type: air-cooled Condenser Coil Model Number: RCGA-36A2 System Configuration: split-system air conditioner Cooling Capacity: 34,200 BTUHs per hour Efficiency: 12 SEER
10.5 EER Electrical Service: Single-phase Electrical Input: 3,272 watts per hour Voltage: 230 and 208

Jul 01, 2011 | Ruud UAMB Air Conditioner

1 Answer

Need a part number for fan motor on UAMB-036JAZ


Hi, what you need to do is gain access to the motor its self. If it is the condenser fan motor or the blower motor . This is a 3 ton unit from the numbers you have given me. There are two ways you can do this. On the data plate on this Ruud unit, normally they are paper with a plastic coating on Ruuds and Rheems, and it will tell you the H.P., size like 1/3, amperage, and the R.P.M.'s. Then get all of the model number and serial number from the unit. The best way is to get the information from the motor its self. It has the voltage, amperage, name of motor, example a G.E., the part number, Horse power (H.P.) r.p.m. such as 1725, 1100, and so on. Rotation, CW or CCW. The new motor will be reversable, just change 2- leads on it. This would be your best bet, to do it this way.
please don't forget to rate me and I know you will be kind. I cant give you the numbers as they will use different motors in the same unit, and different brand names.
Sincerely,
Shastalaker7
A/C, & Heating Contractor

May 29, 2010 | Ruud UAMB Air Conditioner

1 Answer

We have a RUUD AC unit, model number UAMB-042JAZ. ...


Those are the low voltage wires from the thermostat and transformer. Yes he can just match up the colors and splice with wire nuts or something else to hold the tight. If the transformer got shorted out during any of this it may need to be replaced. Hook them up and if the unit runs, then no problem with the transformer.

May 21, 2010 | Heating & Cooling

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