Sundance 850 Series 2004 Marin Breaker Tripping, Even After New Heater Replacement

[bobbydarling]

I have replaced the heater. I turn on the spa. It still trips the breaker. Once, it stayed on for several hours and then tripped the breaker.

NOW, I disconnected the heater, turned it on, it stays on flashes FLO, COOL, 79 degrees. then after a few moments kicks on #1 pump.

1. Why does pump #1 come on?

2. Does COOL mean it thinks the water is too hot?

I can see that the flow sensor is not making contact and I assume that is because when the heater is not attached the circulation pump doesn't run.

A little help.

[bobbydarling]

OK I just showed how dumb I am. Page 30 in the manual.

"If the hot tub water is more than 20 degrees F cooler than the temperature set point, the low speed pump 1 and heater will automatically acti- vate to provide freeze protection. The hot tub will stay in this mode until the water temperature reaches 15 degrees below the set temperature. No corrective action is necessary. "

I still would love some suggestions on how to trouble shoot the spa tripping the breaker.

[MileHghSpaGuy]

Unplug the blower, and see if it happens again, If that doesn't work try the circ pump then the ozone and then aux controller but I'd bet on the blower

[bobbydarling]

i pulled out the circ pump and took it apart it looks and smells burnt at the inside connections. not normal? right?

[bobbydarling]

i pulled out the circ pump and took it apart it looks and smells burnt at the inside connections. not normal? right?

[bobbydarling]

FYI I replaced the circ pump and all is well. Thanks for the help !

[bobbydarling]

For those who may have this problem. Check the see-thru flow sensor visually in you can (behind the right panel on my Sundance Marin) When I looked at it when the old pump was running the contacts touched intermittently. When I checked it after the new pump was installed there was a solid and constant connection between the contacts.