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Hello,

I am looking for some advice. I have a MasterSPA Twilight Series 8.3 Hotub that is 8 years old. This year when I filled it I got an OHH error and the water got very hot (42?) after this I opened all the jets and it seemed fine. Now I have noticed that I get the error when I keep the tub on economy mode (basically so it comes on for 2 x 2 hr stints getting the water to 37 degrees) so this morning I woke up to the OHH error and yet it seems to have heated the tub to 37 as it should. Any advice here? it doesnt seem to happen when it on standard mode (coming on little and often rather than the 2hrs of heating or jets at a time) Is this the sort of error that an engineer will be able to isolate and replace accurately? I suspect it will be expensive so I dont want to spend hundreds of pounds and keep seeing this message.

thanks

Brian

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So I have tried a few things here. FIrstly I removed the larger of the two filters and restarted the tub on the ECN mode. After 10 mins it went into OHH mode. I replaced the filters with clean ones and kept the tub on STD mode all day - seemed fine. At 8PM i flipped it back to ECN (economy) it cleaned and heated for 2 hours no problem. Then at 8 am the next morning I heard it come on for 5 minutes then it stopped - back with the OHH error. Is this likely to be a new circulation pump?

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It could be. It could also be flow restriction. You said clean filters, not new. I suggest you try removing the filters and see what happens first. 

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My filters must be 7 years old - I have 2 sets I rotate. Is it time for new one? a set is about £150 so not terribly cheap....

 

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If it works fine with no filters, you need new filters. 7 years is some kind of record for filter life. Typically you get 2-3 years. I have some customers that replace them yearly as preventative maintenance.

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I'm just testing now with no filters at all. Question - is my hot tub unusual that a set of filters are so expensive? or are they all like that?

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I am not sure how much that is. I also am not sure which master spa you have, some use different (or more) filters than others.

Are you shopping online or from your local pool store?

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So I decided to try the no filters approach yesterday and overnight.  I woke up this morning to a "dr" error code, which by all accounts means -

"Persistent low flow problems. (Displays on the fifth occurrence of the HFL message within 24 hours.) Heater is shut down, but other spa functions continue to run."

I wonder if this means that my circulation pump is not working correctly.... I have the hot tub repairer coming out on Tuesday. I am bracing myself for the cost! 😞 although from reading up about not changing filters I wonder if 7 years with the same filters might destroy a circulation pump - so its my fault really.

thanks

Brian

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To add. a little colour to this. I pinged MasterSPA USA a mail with the symptoms I am seeing. Their response was as follows -

--------------------------

Hello,

 

Leaving the spa in the ECN mode can result in flow related error messages due to the spa not running and checking for temp. We do recommend leaving the spa in the STD mode.

 

Thank You

Ryan Hill

Customer Service

-----------------------

Strange as I have always used the SPA in ECN mode...

 

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Yes - The SPA is working perfectly in STD mode. If I could pre programme when the filtration cycles run I would be happy. But in STD mode they run whenever they want, the SPA is right by our house so this is an irritation in the middle of the night or early in the mornings. I might just have to live with it.

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Sure its a MasterSPA Twilight TS 8.3, picture attached.  For what it's worth I think MasterSPA guy is talking rubbish as I have run it in ECN mode for 5 years......I have bought new filters now though! 

IMG_6031.JPG

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I don't want to mess about with it to be honest. I cancelled the Hot Tub repair guy today as I have run it for a week on STD with no issues. It only goes wrong on ECN mode so I just wont use ECN. This might be the beginning of some sort of failure that will spread to other modes, I'll call the repair guys out when its happening all the time.

thanks

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That's what I thought! That's funny...

I am in the US, Missouri to be exact. Tornado alley. Could you hear my accent, too?

That's one of the things I love about this forum, it's international!

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