Check Valve, 1HP #01A470

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Description

If your unit has a hard time restarting when trying to cycle, order this. If your pressure switch is leaking out of the small bleeder valve on the side (or underneath), order this valve.

NOTE: This check valve will not fit the older "5510" and "6310" models! Email us a photo of your original check valve if you have an older unit (manufactured ~4 years ago) to confirm this new check valve will fit. The old-style check valve has a male flare fitting for the small bleeder tube. If you have the older standard NPT thread, order the #01A53B hose connector so you can attach the bleeder tube.

Model "20040DCAD" will use the 1 HP check valve due to the dryer system installed.

Click here for instructions on adjusting the Check Valve!

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Product Fitment

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2 Reviews

  • 5
    Back in business

    Posted by Jeff Miller on Jan 26, 2026

    Plug on existing valve split for some reason. Odd shaped thing to replace but got that done and good to go.

  • 5
    Installed the replacement check valve, today.

    Posted by Allan W. Graham on Oct 1, 2025

    All went well, now I have to figure out why the compressor, when shut off doesn’t retain air pressure.

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