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No heat coming from RUUD UPNE-036JAZ heat pump

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

chillmaster
  • 104 Answers

SOURCE: Ruud achiever heat pump

If back-up heat comes on when a/c is turned on and then the back up heat turns off shortly after the a/c turns off, then the low voltage wiring is NOT correct. Your "R" terminal is basically your "hot" and your "C" terminal is basically your "neutral" to simplify explanation. The Furnace supplies the "R" power to the thermostat and then depending on what wire the thermostat sends the power back on determines what the system does. The thermostat terminals are as follows "G" is fan, "W" or "aux" is elect heat, "Y" tells the outdoor unit to run, "O" or "B" tells the outdoor unit whether it is heating or cooling, and "E" is emergency heat. "G" should connect from the t-stat directly to the furnace and go no further. "W" or "aux" AND "E" should both connect to your "W" or "W1" terminal in the furnace, there should also be a "W" connection to the heat pump ( this allows the H/P to turn on the elect heat when the unit defrosts) "Y" and "O" or "B" may or may not connect to a terminal in the furnace, usually they just pass through the furnace from the t-stat to the H/P and get wire nutted in the furnace. Now, here is the key. As I mentioned previously "O" or "B", a system will only use one or the other. The entire industry (except for Rheem and Ruud) uses the "O" terminial which has 24v on it when you are cooling and no power when you are heating. Rheem and Ruud use the "B" terminal which is just backwards, 24v in heating and no power in cooling. this could also be your problem if the t-stat thinks it is telling the H/P to cool but the H/P is actuall interpreting the signal to heat. Check your amp draw on the furnace, if you have anything drawing 15 amps+ then it is most likely the actual elect heat running, if not then check the "B" terminal. Most universal t-stats come set from the factory to use the "O" terminal which is more common. Usually this can be changed in the installer setup menu on the stat or sometimes the stat will have separate "O" and "B" terminals

Posted on Jun 15, 2008

  • 182 Answers

SOURCE: Ruud Heat Pump

this may indicate you have low voltage but no high voltage.check fuses and breakers.

Posted on Aug 09, 2008

  • 121 Answers

SOURCE: ruud heat pump

Did you just install this heat pump? If so it sounds like you replace a regular a/c with a heat pump, which will require more wires for the reversing valve. First check to make sure you have 24v going to the condenser. Make sure you have a heat pump t-stat. You should have a orange t-stat wire for your reversing valve. At the t-stat you will have terminals R, Y, G, O, X or C or B, W1, and W2. R is half of your 24v circuit and is a red wire, Y is for cooling mode, G is the Fan green wire, O is for the reversing valve, orange wire, X or C or B is the other half of control circuit blue wire, W1 and W2 is the heat strips in the furnace tan and black wires. These are standard color code but remember electricity does not know colors and an installer may have used different colors. If all of this is correct possibly bad contactor.

Posted on Oct 31, 2008

shastalaker7
  • 1515 Answers

SOURCE: i have a ruud heat pump that tries to run aux heat

Hi, This sounds like it is cold enough, the ambient temperature outdoors and is bringing on the aux heat to help even at 1 degree. Nothing to be concerned about the energy you may use will be next to nothing.In the program of the stat as mentioned above, there is what they call a heat anticipator with should match the amps on a gas fired unit, and heat strip control on the heat pump. Gas setting from the factory would be at .04. Heat pump will be shown in the book. Don't even be concerned about this. Happy Thanksgiving,
Shastalaker7

Posted on Nov 26, 2009

keith91gmc
  • 52 Answers

SOURCE: Heat pump iced up...I think the defrost board is

try bailor heating and air they have a home parts center for home owners phone number is 812-421-7235 in evansville ,In

Posted on Dec 19, 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.

Nov 08, 2016 | Ruud Heating & Cooling

1 Answer

Wiring diagram RUUD UAPA-036JAZ


the condensor gets 240 volts a-c and 24 volts a-c to control contactor. pretty straight forward on this 3 ton unit. the 240 volts comes off breaker box and the 24 volts comes off thermostat and common of transformer.

Jun 10, 2014 | Ruud Heating & Cooling

1 Answer

Ruud upne-042jaz fan not starting


If the fan motor is not starting it may be the capacitor located behind the electrical panel on the outside unit. These are relatively inexpensive and easy to change. You can disconnect the power to the outdoor unit and remove the capacitor. Take it to your local HVAC wholsaler or contractor and have them check it. If its bad it should run you 20 to 30 dollars to replace. If it is not the capacitor then it may be the fan motor. If the blade turns easy it means the bearings are fine. One of the windings may be open thus making it able to turn but not run when power is supplied. I think this is a heat pump and there may be a control board on the outdoor unit which may control the operation of the fan. I have not found a wiring schematic for the unit yet. Once I find one I will let you know. The problem listed above is very comon and inexpensive for you to fix. If it is something other than the capacitor, I would call you local NATE certified technician and get her looked at.

Jun 06, 2010 | Ruud UBHC Air Conditioner

1 Answer

My ruud upka-036jaz keeps freezing


First off check your air filters and make sure the indoor fan is running. If there is not enough air flow over the coil it will cause this. If those are OK you may have a low refrigerant charge.

May 02, 2010 | Ruud Heating & Cooling

1 Answer

Aux heat always comes on in heating (Ruud heat pump)


what type of system is it, if it's it Rheem the o/b needs to be set for B, if not check the freon charge, or thermostat, there will be a point where the aux. heat comes on when you turn it up, poss. only 4 degrees, is it a mercury stat or digital ?

Feb 01, 2010 | Ruud UAMB Air Conditioner

1 Answer

Power outage last night now my RUUD High Achiever AC Unit model# UPNE-048JAZ will not work


Power surge may have taken out your control board (in the furnace, does the fan work?), possibly the transformer (in the furnace) or possibly the capacitor (in the A/C). Call a professional.

Aug 22, 2009 | Heating & Cooling

2 Answers

Ruud Heat Pump


Check to see if there's low voltage reaching the contactor's coil. If there is. and it doesn't close (pull in), then it's defective and should be replaced. Cut the power and check ohms to be certain.

Aug 09, 2008 | Ruud UAMB Air Conditioner

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