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: Check for signs of chemical damage around the pump seal area. If
: present, the leakage has probably wrecked the front motor bearings.
: You'll either need a new motor/pump or you can try rebuilding the
: motor and installing new pump seals.
Thanks for the reply.
I've removed the impeller housing and impeller.
Although there doesn't appear to be any damage around the seal, there is definitely signs of leaking around the front motor shaft.
And of course, the shaft is difficult to turn.
I think you're right and I've probably lost the front motor bearing.
Can you (or anyone) point me at a resource for how to replace that bearing?
Is it even possible to open the motor up without removing the wraparound heat exchanger?
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