crwdns2934241:0crwdne2934241:0 L Pfaff

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Keith Hooper, The high pitched noise may have been from a faulty fan or possibly pump(bearing). Below find a couple links to disassembly guide that can get you inside the unit to check and test for bad components.  Good luck. I hope this helped you out, if so let me know by pressing the helpful button.

[guide|61640]

[guide|56768]

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open