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Thread: Testing Jandy 3HP relay

  1. Back To Top    #1

    Join Date
    Jun 2016
    Location
    Chicago Illinois
    Posts
    2

    Testing Jandy 3HP relay

    I am pretty sure I need a new relay but would like to confirm this before purchasing a new one by testing the relay. The relay appears to be stuck because it is providing power at all times regardless of switch position or timer. I know that the switch should have a 300 ohm resistance however I am not sure where to place my meter to test the OHMS. Can anyone how to test the meter?
    Specifications: 11K gal, IG vinyl, 1.5 Jacuzzi Magnum force pump, sand filter, Jandy Control Center, Jandy Heater
    I have had my in-ground vinyl liner pool for 17 years. thanks to the internet I have become pretty handy at maintaining and repairing the pool myself, but there is always new things going wrong. I look forward getting advice and sharing things I have learned.

  2. Back To Top    #2

    Join Date
    Dec 2014
    Location
    Riverside California
    Posts
    473

    Re: Testing Jandy 3HP relay

    Try giving the relay a firm tap with something like the handle of a screwdriver. Sometimes this works to free the stuck contact(s) that have been temporarily "welded" together because of a over current condition. To measure the resistance of the relay coil you attach the ohm meter leads to the relay coil wires. This would be the leads from the relay that attach to your control board. Make sure all power is off to your control center before measuring. You have to remove the relay coil leads from the control board before measuring the coil resistance.
    38000 Gal, IG, Plaster, 20' x 40' x 10', Attached Raised Spa, Intelliflo VS 3 HP (011018), Pentair Quad DE 60 Filter, Raypak (Rheem) 400,000 BTU (407a low Nox), Easy Touch 8 upgrade, Screenlogic 2 with wireless, IS-4 Spa Side Remote, Stenner 45MPHP10 w/15 gal tank, Intellibrite 5g (3), Dolphin Triton Plus robot with PRO remote, Water Tech Catfish handheld vacuum for spa, TF100 with SpeedStir.

  3. Back To Top    #3

    Join Date
    Jun 2016
    Location
    Chicago Illinois
    Posts
    2

    Re: Testing Jandy 3HP relay

    Thank you for your reply. I had previously tried smacking the relay and did not get it unstuck. I will test the relay and see whats up.
    Specifications: 11K gal, IG vinyl, 1.5 Jacuzzi Magnum force pump, sand filter, Jandy Control Center, Jandy Heater
    I have had my in-ground vinyl liner pool for 17 years. thanks to the internet I have become pretty handy at maintaining and repairing the pool myself, but there is always new things going wrong. I look forward getting advice and sharing things I have learned.

  4. Back To Top    #4

    Join Date
    Dec 2014
    Location
    Riverside California
    Posts
    473

    Re: Testing Jandy 3HP relay

    One last thing to verify the relay is bad is to unplug the relay from the control board, which will remove any source of power to the relay coil. If the relay is still stuck on and you have whacked it, then you have no choice but to replace the relay.
    38000 Gal, IG, Plaster, 20' x 40' x 10', Attached Raised Spa, Intelliflo VS 3 HP (011018), Pentair Quad DE 60 Filter, Raypak (Rheem) 400,000 BTU (407a low Nox), Easy Touch 8 upgrade, Screenlogic 2 with wireless, IS-4 Spa Side Remote, Stenner 45MPHP10 w/15 gal tank, Intellibrite 5g (3), Dolphin Triton Plus robot with PRO remote, Water Tech Catfish handheld vacuum for spa, TF100 with SpeedStir.

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