Exocet
Central NY, USA
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Joined: 04/11/2003
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I've noticed that when the converter in my TT is under a very light load, the cooling fan sounds like it is speeding up and slowing down. When the load increases, it runs at a constant speed. It's a WFCO 55A unit. Not sure if the fan is supposed to be variable speed, or maybe the fan is dying?
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skipnchar
Topeka or somewhere else
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Joined: 12/17/2003
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Could be a bad ground or corroded connections.
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Curt Croly
Orlando, Fl., USA
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Joined: 10/04/2003
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Yes it is a variable speed cooling fan. Light load: none to slow fan. Heavier load: faster fan.
Cosworth
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Learjet
Louisiana
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Curt Croly wrote:Yes it is a variable speed cooling fan. Light load: none to slow fan. Heavier load: faster fan.
Ditto, normal operation for mine from day one. Been talked about here a few times.
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Exocet
Central NY, USA
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Thanks. It's just strange that with a light load it's speeding up and slowing down. I was expecting a slow, but constant speed.
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09FLSTC
Out West
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Joined: 02/26/2009
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You're right on the threshold of a load controlled cooling fan.
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