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Tjernland SS-1 problems

Does anyone out there know if there's supposed to be a hole on the inside of the inside enclosure that the squirrel cage fits into? I replaced a squirrel cage on a 10 yr old one and its very noisey, kind of like a harmonic screech for lack of a better term. I don't know what the old one sounded like, it was broke when I got there.


  • Paul Fredricks_3
    Paul Fredricks_3 Member Posts: 1,549
    Don't know

    about the hole. Never noticed one before, but also wasn't looking for it. A screech sounds more like the squirrel cage is hitting the housing. We always change the motor and fan as one unit. Eliminates alignment issues.
  • Thanks

    I never really looked for one either. Nobody from tjernlund has replied,nor has the supply house that I deal with....
  • Coany
    Coany Member Posts: 91
    the hole is a knockout for use with a standing pilot

    its to allow for a standing pilot.

    your supposed to open the knockout if you've got one.
    " Do what you can, with what you have, where you are" Teddy Roosevelt
  • billtwocase
    billtwocase Member Posts: 2,385

    Are you seeing the holes that accept the metal pegs on the motor assembly?
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