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I have a ruud ubea-21j10nfhai air handler what size unit do i need

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  • 126 Answers

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Posted on Apr 22, 2017

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Posted on Jan 02, 2017

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  • 20 Answers

SOURCE: Wiring Diagram

here is a basic wiring diagram for all air cond systems your thermostat consist of treminal r w y and c run a four conductor wire fromm thermostat to ai handler the air handler should allso have eather have red blue white wires or a teminal block marked r w c r stands for red w for white c for comon allso blue run color for color from the thermostat to ai handler with exeption of yellow yellow runs straigth to condenserand retuns in white wire to air handler wich gets conected to comon hope this help[s you

Posted on Jul 23, 2008

  • 20 Answers

SOURCE: Old Ruud Air Conditioner

all heat pumps follow the same schematics universal get a hold of any heat pump schem and you should be able to aplie it to yours

Posted on Jul 23, 2008

james3751
  • 614 Answers

SOURCE: Air Handler leaking

First make sure unit is level. Drain pan may be dirty. On the rheem or Ruud unit the back of the pan gets stopped up. Ithas small holes that let the water by and they get stopped up. Now even though your drain is clean you may have a stopped up dain pan. Check this > These are problems you can take care of your self. Open up the top panel of your unit and you can look down on the drain pan. Check for dirt and stoppage near the outlet of the drain pan. You amy also have a cracked drain pan but I doubt it. Rus

Posted on Jul 14, 2009

  • 415 Answers

SOURCE: RUUD UBHA-14 J11SFJA air handler. The fan (blower) doesn?t runs

Absolutely, however, you want to properly diagnose the reason why the fan is not running. It could be a less expensive part than the fan motor itself.
First, check to see if you have the proper voltage going to the motor. I believe your motor requires 240volts ac. If you do not have 240 volts, you have a control problem.......either the thermostat is failing to close R & G or your blower relay may have failed to close the contacts necessary for your fan to operate.
If you have the voltage, then you want try spinning the blower wheel with your hand. Does it spin freely? Is the motor warm/hot? If so, turn everything off for an hour or so. As soon as your energize it, try spinning the motor with your hand again.....if it spins freely with no resistance and then starts running by itself, the problem is the run capacitor (approx $20.00 depending on where you purchase it from). If there is resistance when you try to spin it, the problem is most likely with the bearings and you will need to replace the motor.......if you have to replace the motor, go ahead and replace the capacitor also, making sure it is properly "matched" with your new motor.

I hope you find this to be very helpful to you, moving forward. :-)

Posted on Mar 28, 2010

  • 674 Answers

SOURCE: air handler motor stopped working

Check the capacitor before you replace the motor. It's a common problem that's easily fixed. Make sure the fan rotates freely.

Posted on May 23, 2010

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1 Answer

Need wire diagram from T-stat to Air-Handler then cond unit


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My system uses a permenant air filter. It's missing. It's a Ruud Model UBHC-21J18SHG. What size filter should I put in this system?


The Ruud UBHC-21J18SHG has a nominally 21" cabinet width. So the needed filter is 19.75" x 21" x 0.375" (502 mm x 533 mm x 9.525 mm). The Ruud part number for the filter is 54-23217-03 .

The specifications sheet for the Ruud UBHC series air handlers is available here: http://www.coburns.com/images/PDFs/h22-517rev1.pdf . The filter size information is on page 3 and page 12.

I've found the filter at one online vendor: http://www.patriot-supply.com/products/showitem.cfm/RHEEM_68_101807_03 . (This is a common filter that fits several manufacturer's air handlers.)

I hope this helps.

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1 Answer

I have a Ruud Model # UACC-036JAS. Any idea on


Hi, yes the number you are showing me 036 indicates its a 3 ton unit. For every ton of cooling, you will have 12,000 btu's of cooling. 36 divided by 12=3 ton unit. Its showing me also its a Ruud Handler 2.0 ton which would be a Model# UACC-024JAS? If your mobel number is the one you gave me, UACC-036JAS, this is a 3 ton unit, absolutely no questions. I hope I have been of help to you. I am a licensed air conditioning / Refrigeration /Heating Contractor. Let me know if I have been of help.
Sincerely,
Shastalaker7
PS If this is a split system with the indoor air handler and condenser outdoors, both coils must be the same tonnage for it to work for you properly. You can't have a 2 ton indoor evaporator coil with a 3 ton condensing unit.

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1 Answer

Need to find ac coils for RUUD ac in the Air Handler


follow the copper lines coming into the air handler.1 will be large and insulated and the other smaller and uninsulated.They attach to your evap coil.

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Need to change a filter, can't find it?


Found it, I could kick myself for not reading all the labels on the air handler unit itself.  If you look in the middle of the unit where the power is connected you'll see a small door that says filter access.  Two thumb screws hold it in place and behind it is a washable black mesh filter, slides out. 

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Check the name plate amperage on the air handler. The air handler only has the blower motor as its main current draw. #12 wire is rated for 20 Amp service. If the amp draw by the unit supplied by the disconnect is under 15 amps it should be fine (but) once again check the name plate for ampacity rating.

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we are trying to install a goodman heat pump with a rheem air handler, the orange wire is hook up and the unit is still staying in the heat mood. does anyone have a wiring diagram for the air handler, their is some white wires in the air handler one with a purple strip and one with a black strip we need help

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