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Just wanted to let everybody know first of all thank you for the help and secondly what seems to have fixed my problem should anyone else run into similar symptoms. The problem did end up being a faulty thermal switch. I especially want to thank Bob for posting the instructions to test the...

thanks bob. that link is a lot more help. but, it looks like i am going to have to totally disassemble to motor to access it (at least on my model) which brings me back to an unanswered question: do you guys recommend the pentair brand seal or is the US Seal brand an acceptable replacement...

I checked the o-rings but did not look at the shaft seal. When I go to check it, what am I looking for? Or do you suggest just changing it for good measure? Question about seals... do you guys recommend the pentair brand seal or is the US Seal brand an acceptable replacement? only reason I ask...

mas, the motor will run for up to a minute then turn off. John last it worked was right up to our first freeze (November or December). The motor did freeze up due to me forgetting the darned timer shutting down the motor during a cold blast. The lid lip on the pump pot (where the strainer is...

Is there a high temperature cutout switch available for this motor? a part number would help me a bunch. thanks - - - Updated - - - John I was measuring to the neutral where it screws on to the motor from the power cord. I'm trying to decipher the motor label as well... does this indicate that...

pics of motor label

Boy, this one really has me scratching my head. thanks for the quick responses. John I took the cover off and blew dust and spider webs out but still had problem. I can't imagine having to replace the entire motor, it only has 2 seasons on it. Are there any other parts in the motor that would...

thanks for the quick response. Is there a separate run capacitor? I only find one on the end, it does not have the external "hump" I have seen on other motors. I am having to replace the toggle switch (due to me cracking the switch housing when I was taking the cover off) so that should...

I have a 2 speed Pentair Dynamo pool pump P/N 340221. I discovered today that when I switch over to high speed the motor turns off after 30 seconds or so. After a minute or so it turns back on only to repeat the process. From what I read, it may be that the thermal overload is responsible for...