Breaker Won't Stay On And Freezing Weather At Hand

[stahzz1970]

Hi! Thank you for any advice you can offer. The circuit breaker for my hot tub won't stay on. I try to flip it on and it just flips back to the off position. It's a Marquis Everyday 418, made in 2006. The weather is at freezing or near freezing, and it will be freezing for many days on end starting the day after tomorrow, so it appears time is of the essence.

The LED panel reads the following codes: IC and Sn. I know IC means there are icy conditions and Sn means there's a sensor problem. The water temperature was 44 to start with last night and then it got all the way up to 50 and perhaps a bit higher before flipping off about seven hours later. This is why I dont believe the problem is the heating element, but Im not totally sure.

Today I fixed a leak in the hot tub, apparently, which was just a loose screw in the component panel of the hot tub. The screw connects a tube to the element at the bottom of the box that contains electronic circuitry. The leak is apparently fixed because it has been eight hours since I tightened the above mentioned screw and the water level has not gone down an iota.

I have checked all the fuses, for what thats worth, and they all show continuity.

One more thing: I live in a small town in southeastern Ohio, Athens, and apparently the only two contacts I have for hot tub repair experts are on vacation. I know I'm starting this just before a weekend, but I just closed on the house the hot tub is located at, and the problem has just come up. If anyone has any suggestions for an expert who can help me directly on site in Athens, Ohio this weekend or Monday, please please let me know.

Thanks again.

[Roger]

That tube is the heater. There should be a sensor on the heater and a sensor past the heater. One is for overheat and the other is for flow. I would check the flow sensor first. How long since you cleaned the filters? Take the filters/s out and try running it. If that doesn't do it use a jumper across the flow sensor.

[stahzz1970]

Thank you greatly for your response and I apologize for the lateness of my own response. I had a local spa repairman check out the situation and he said there had to be something wrong in the circuit board. Power was tested but not enough power was there. Because it will freeze pretty hard next week and I would totally be a newbie at winterizing the tub and thus don't want to mess it up and have freezing problems anyway/don't have time to get the board refurbished based on local circumstances, I went ahead and bought the circuit board (480 bucks!) and a returnable element in case the element is an issue (it could not be tested because of not enough voltage coming through the system, per the repairman). I'm planning for the repairman to come Thursday and hopefully finish everything out.

1. I am concerned that there may still be a problem after the circuit board/possibly element are installed because sensors could still be a problem.

2. I am also concerned that sensors could still be a problem because they might not be something I can replace locally before the big freeze.

3. I am concerned the above mentioned diagnosis of the problem is not correct.

Please advise on my above concerns. I appreciate your help and plan to make this site my go to for help and helping others with hot tub issues as I gain knowledge and experience.

[stahzz1970]

Also, the repairman said that filter cleaning wasn't relevant at this point, but based on your post I will find out how to clean out the filters and do that now.