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Digital/Electronic Spa/Hot Tub Equipment Control Problems

Help - "OH" Error when it's not overtemp

If your spa control has any type of circuit board in the control box, then this is your section for getting answers to your questions.

Help - "OH" Error when it's not overtemp

Postby SpaNut1 » Tue Apr 26, 2011 8:23 am

Older Balboa DU-SAR100-CCA controller, just replaced the topside control. New filters.

After about a week, the tub is getting OH error. If I power the tub off and back on it will work okay for several hours, but eventually the OH comes back on the display.

Any ideas on where to start? :shock:
SpaNut1
 
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Re: Help - "OH" Error when it's not overtemp

Postby jtth » Fri Apr 29, 2011 12:05 pm

Some balboa controllers are fairly susceptible to RF noise from various accessories, but the most common one is the ozone generator. If your spa is equipped with an ozone generator, try disconnecting it and see if the problem goes away. If so, you can try moving the ozone generator to a new location away from the topside control. Also, make sure the ozone power cable is routed away from any of the controller's signal cables. If there's no ozone generator, or if the problem persists without the ozone connected, look for other electrical noise sources (audio or video equipment, etc) near the spa that might be causing the problem.
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Re: Help - "OH" Error when it's not overtemp

Postby SpaNut1 » Fri Apr 29, 2011 12:23 pm

Wow, funny thing I saw something else about that and unplugged the Ozone unit last night and no more OG!

Its a new Del MCD 50. It is mounted to the right of the control box and away from the topside control or its cable.

I have emailed them about what to do in the way of shielding or filtering.

Arghhhh! Any ideas what to do?
SpaNut1
 
Posts: 5
Joined: Tue Apr 26, 2011 8:20 am

Re: Help - "OH" Error when it's not overtemp

Postby jtth » Tue May 03, 2011 10:22 am

You should be able to work with the manufacturer to get a new ozone generator. Sometimes, just a different unit of the same model will eliminate the problem. But probably a better option is to request a different model with similar output specifications just to be sure. If they know you have a Balboa pack, they should be able to give you a model that is most compatible.
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Re: Help - "OH" Error when it's not overtemp

Postby SpaNut1 » Sun Feb 19, 2012 11:24 pm

It was the new ozonator. maker said this was extremely rare and the new unit solved the problem.
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