Question about Intertherm P3RA-060K Air Conditioner

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I have an intertherm SCH-10 air only A/C unit on my older RV. The A/C compressor works and the squirrel cage blower works. Problem is blower will not work whe compressor is on. Any ideas or how about a wire diagram?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 49 Answers

SOURCE: Intertherm to Honeywell thermostat

Typically if you have a yellow wire in the "y" terminal blue is used as common or "c". As far as your jumper from rc to rh, that will depend upon what type of heat you have. If all of your heat and cooling come from your packaged unit outside, yes you will need the jumper. If this does not work maybe you have a bad breaker or transfomer.

Posted on Oct 14, 2007

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MicrowaveSvc
  • 9047 Answers

SOURCE: GE Microwave vent fan replacement.

The part # SMV-260UA runs just under $60 from SamsungParts, depending on which of three versions you choose. You can find them here.

And a simple Google search shows quite a few hits for "SMV-260UA" and they seem to run about $40, assuming the listings aren't bogus - as so many search results are.

I have a few "new old stock" and used vent & cooling fans here.

I would be happy to supply one whole or just the blades if you like.

Just tell me the dimensions: diameter of the shaft hole and the length and diameter of the "squirrel cage" itself and I'll see if one of mine would work.

We're happy to help you and we'd appreciate your thoughtful rating of our answer.

Posted on Jul 19, 2008

consumer45
  • 7 Answers

SOURCE: defective squirrel cage fan

Upon searching further, I found parts for the unit. www.appliancefactoryparts.com
Part CRCFD5303-010 Fan - $19.99
Part CRCFD3000-030 Motor - $49.99

Posted on Aug 15, 2008

  • 1 Answer

SOURCE: self contained intertherm ac unit

Also, make certain that you have a p-trap on the drain for the unit so condensation isn't being carried off of your evap coil and blown back up in your ductwork.

Posted on Aug 20, 2008

koolbreezes
  • 540 Answers

SOURCE: I have an old Intertherm

Run 120 volts straight to the motor wires . white-ground black=hi speed.

Posted on Sep 05, 2008

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1 Answer

Vibration and loud rumbling noise


blower motor bad or squirrel cage out of balance.

Sep 30, 2013 | Gibson Intertherm Nordyne Miller Fan Motor...

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This blower motor lost some blades some how threw it all out of wack (wobbly) so much it hitting casing. Motor works. Would I need to replace everything or just the blade wheel ? It is an older amana air...


you may have to replace the blower because the squirrel cage is out of balance due to the loss of blades.
and may have damaged the bearings/bushings
if you can get just the squirrel cage that great

Sep 13, 2013 | Heating & Cooling

1 Answer

How to replace blower wheel on Friedrich SL28M30 AC unit


follow this steps and fix it. God bless you








    • 1



      Turn the electricity to the air conditioning unit off at the
      service disconnect box. Follow the wires from the AC unit to the
      disconnect box, usually located next to the unit. Open the disconnect
      box and, depending on the type, either pull the buss-bar or flip the
      disconnect switch.





    • 2



      Open the air handler\'s access panels with the correct size of nut driver, usually 5/16- or 1/4-inch. Save the screws.









    • Remove the control panel\'s cover, if equipped, with a nut
      driver. Some models have a flat metal cover over the electronic
      controls, and some control panels butt up to the unit\'s access cover.
      Save the screws and access cover.





    • 4



      Follow the wires from the blower motor. Two wires will go to
      a capacitor located on the blower\'s housing. The rest of the wires will
      go to the control panel.





    • 5



      Cut the wires leading into the control panel with wire cutters. Leave the cut wires connected inside of the control panel.





    • 6



      Remove the retaining bolts with either a nut driver, usually
      3/8-inch, or an adjustable wrench. The retaining bolts, found on the
      mounting brackets that the blower\'s housing slides on, keep the blower\'s
      housing locked into position. Save the bolts.





    • 7



      Slide the blower motor\'s housing out of the AC unit. The housing will slide straight out along the mounting brackets.





    • 8



      Disconnect the two wires going to the capacitor. They will pull straight off the capacitor\'s terminals.





    • 9



      Unscrew the squirrel cage\'s locking-screw with an adjustable
      wrench. The squirrel cage, the bladed wheel, connects to the blower
      motor\'s shaft inside of the housing. The locking screw holds the
      squirrel cage to the shaft.





    • 10



      Unscrew the blower motor\'s mounting screws with either a nut
      driver, usually 3/8-inch, or an adjustable wrench. These screws hold
      the motor to the housing and are found on the opposite side of the
      squirrel cage, the same side that the wires leave the motor.





    • 11



      Pull the motor from the housing. A drop of oil on the shaft
      will aid in removal. If the squirrel cage sticks to the shaft, then hold
      the shaft still with an adjustable wrench while spinning the squirrel
      cage on the shaft.





    • 12



      Slide the new blower motor into the housing. The blower motor\'s shaft will slide into the squirrel cage\'s hole.





    • 13



      Tighten the blower motor\'s mounting screws.





    • 14



      Spin the blower motor\'s shaft until the flat part of the
      shaft lines up with the squirrel cage\'s locking screw. Move the squirrel
      cage in or out until it does not touch the housing or the blower motor.
      Tighten the locking screw.





    • 15



      Connect the blower motor\'s capacitor wires, usually brown or
      brown with white stripes, to the capacitor. Direct replacement motors
      use the same color-coded wires as the original.





    • 16



      Slide the blower motor\'s housing into the AC unit along the mounting brackets. Install the mounting bracket\'s retaining bolts.





    • 17



      Connect the new blower motor\'s wires in the control panel
      one at a time. Disconnect one old wire in the control panel. Determine
      its color and connect the new wire, of the same color, to its place. Do
      this for all wires.





    • 18



      Replace the control panel\'s cover, if equipped, and the
      unit\'s access cover. Turn on the power to the unit at the disconnect box
      and test the blower motor.







Jul 17, 2013 | Friedrich Kuhl Series SL28M30 230 Volt,...

2 Answers

Why does my ac freeze up


Hello, air conditioners will freeze either due to low airflow.....such as dirty filter, dirty evaporator coil, weak or not running blower motor. Also, a low refrigerant charge can cause the unit to freeze up.

Jul 09, 2012 | Danby Heating & Cooling

1 Answer

Changing squirrel cage GE window a/c


yes, most smaller window units have both outdoor and indoor cages connected to a single motor in the middle of the 2 blower wheels and are completely seperate from the compressor and it associated parts

Jun 11, 2012 | Mastercool 67680 Evaporative Cooler Air...

2 Answers

Coleman RV Rooftop Air Conditioner - cage fan making a noise like it is hitting on something as it goes around. The motor works as it should, low and high fan and cool, the air is cold. The only thing...


Hi,
Those squirrel cage fans have a habit of coming apart, or getting dirt in them and going out of balance...then they wobble and hit the sides of the fan housing...
Make sure the fan is clean and also move it around a bit to make sure it is not coming apart....
Often the only way to fix them is too replace the sqirrel cage part...

heatman101

Mar 06, 2011 | Dometic Rooftop RV Air Conditioner

1 Answer

Take a long time for blower motor to get up to speed


The first thing I would do is to clean motor and squirrel cage. It would be best if you would remove it and take it somewhere that you had a air compressor to blow out motor ports and fins on squirrel cage. Most of the time you can remove by disconnecting modular plugs and removing two or more screws on rail that squirrel cage slids on.
If you can get it out you can use a fine wire brush to loosen dirt and dust from fins on cage then use air to blow out as much as you can.
Your motor may be getting worn so check the bearing by grasping cage and see how much it will slide side to side and if it moves more then about1/8 inch then you are going to need to replace it before much longer. Also make sure that the rim of squirrel cage is not rubbing on blower housing and if it is then loosen motor mounting screws and adjust ,then retighten screws.
I hope this helps you. Thanks

Jan 04, 2011 | Ruud UBHC Air Conditioner

1 Answer

A/c unit vibrates entire rv. could not find any


You may have to remove cover on roof and check condenser fan as well. That will also allow you to observe for possible fan wobble, bad compressor mounts etc. Please shut power off at breaker until you have cover completely off, and be real careful for wasps, and roof may be slippery if wet, or early morning dew on it. Stand back, hands back and have someone turn it on.

Jun 15, 2010 | Dometic Rooftop RV Air Conditioner

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