Hot Tub Forum
Original => Hot Tub Forum => Topic started by: brian_tr on June 15, 2018, 08:49:02 am
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Just my luck. Finally got hot tub back up after moving it for new cover lifter and having to wait for replacement cover lifter. Now when the big filter pump comes on making loud knocking noise. I have a short video but don't see anyplace to attach it. It seems to be coming from inside the pump not the motor.
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Does not seem to do it when I take filter out.
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If it stops when you remove the filter, I'd replace the filter and call it a day. Doesn't really make sense but on a 16 year old hot tub I wouldn't spend a lot of energy or money worrying about it if this solves it.
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I wonder something could of got in there?
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That was my initial thought but if it stops when you pull the filter, that doesn't make sense. I was just assuming that the filters are super dirty and causing partial cavitation of the pump.
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I ordered new filter. About time anyway.
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As I was putting in the new filter today I found what the problem was. The door was stuck in the upper position not letting enough water in. This is actual a 2000 floor model. Guess I have got my money worth from it. Hoping for several more years. I use to shut it down for the hot summer but every time I would bring back up after being down I had to replace something blower, control panel, recirc pump so now I just let it go all year round and no problems since.