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Receiver drier service tip

By Paul DeGuisseppi, MACS manager of service training
Suspect you have a restricted (or partially restricted) receiver drier? You can find out by performing a simple test. Turn the A/C system on and allow a few minutes for it to stabilize.
Slide1
Then, using an accurate contact thermometer, measure the temperatures of the drier’s inlet and outlet pipes as close to the drier as possible.
Slide2
A difference of more than 10 degrees F between the readings indicates that the drier is internally restricted and needs to be replaced.

 

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When having your mobile A/C system professionally serviced, insist on proper repair procedures and quality replacement parts. Insist on recovery and recycling so that refrigerant can be reused and not released into the atmosphere.

If you’re a service professional and not a MACS member yet, you should be, click here for more information.

You can E-mail us at macsworldwide@macsw.org or visit to find a Mobile Air Conditioning Society member repair shop in your area.
The 34th annual Mobile Air Conditioning Society (MACS) Worldwide Training Conference and Trade Show, Be the Best of the Best will take place January 16-18 2014 at the Sheraton New Orleans.

One response to “Receiver drier service tip”

  1. Does it work the same with an Accumulator & a Drier? I’m assuming so. As long as there is minimal restriction, inlet & outlet should be relatively the same temperature. Correct? The touch test now made more accurate!
    Woody
    Walnut Auto Air
    Walnut, CA

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