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Thread: C2001r2b Board replacement

  1. Back To Top    #1

    Join Date
    Dec 2015
    Location
    red wing, mn
    Posts
    1

    C2001r2b Board replacement

    Hi, I just replaced my control board on my cal spa. the tub isn't heating so I made sure there wasn't an air lock, we have water running through the lines. I tracked the issue down to the voltage leading to the heating element. Please bear with me while I try to explain it. By poles I mean the 6 connectors on the top of the board.
    old set up had as follows
    pole 1- goes to heater with power from pole 2
    pole 2- power in from breaker 120v 1st leg of 240v
    pole 3- goes to heater with power from pole 4
    pole 4- power in from breaker 120v 2nd leg of 240v
    pole 5- connected with a jumper to pole 4
    pole 6- 30amp fuse running to pole 2
    new setup I had all the wiring the same but both pole 1 and 3 get the power from pole 4. If I check the voltage from pole 1 and 3 it zeros out on new board, if i do it on the old board it equals 240.

    Please help! I've tried looking for other schematics for this board but no luck. Does anyone know the difference between c2001r2a and c2001r2b?

  2. Back To Top    #2
    Mod Squad tim5055's Avatar
    Join Date
    May 2014
    Location
    Franklin, NC
    Posts
    9,193

    Re: C2001r2b Board replacement

    Well, looking at this site selling the boards (CAL SPAS C2001R2A AND C2001R2B PRINTED CIRCUIT BOARD | The Spa Works) they say "(Newer Revisions May End With Any Letter)"

    I would give the place you purchased it from a call to ask about hook up.
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