Re: Marco UP6/E pump and MASS+
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I understand that you are saying when the MASS switch is moved to "+" (positive) the light turns ON. Correct?
This means that there is a connection between 24VDC Positive and Bonding. When a pump is involved it is almost always because a pump seal has failed, allowing water to penetrate and cause a connection between bonding and positive 24VDC. (If the light comes ON when the switch is in the Negative position, the connection is between Negative and Bonding,). Saltwater creates a stronger connection than freshwater.
In your situation, most likely saltwater has probably caused this "connection" between bonding and 24VAC Positive. I think the first place that I would look very closely is the ethernet type connection between the pump and the optional electronic monitor (male & female). I believe you will find the fault there. Clean the connection(s) with freshwater, then alcohol. Then next, I would open the pump electrical connections. What I would look for is salt crystals. Remember, these could be microscopic, especially with ethernet connections (male & female). Let me know what you find.
Regarding the function of the 24V panel light, Marco owes me an explanation. I asked for this some time ago. I will email them again today and will post the answer to the group.
CW Bill Rouse
720 Winnie St
Galveston Island, TX 77550
On Wed, Mar 6, 2019, 8:41 PM Scott Nguyen <scott.nguyen@...> wrote: