[DML] Re: Cooling fans won't turn off..?

["ksgrimsr" <knut.s.grimsrud@xxxxxxxxx>]

I'm not sure your problem is the same as mine, but I had an issue 
last year that had the same symptoms you describe.

In my case, the problem was a side effect of interaction between the 
hysteresis of the otterstat switch and the effective setpoint of 
thermostat. The otterstat has a bit of hysteresis built in so that 
when it turns the fans on, the switch remains activated until the 
temperature comes down below a certain point at which time the 
switch opens. In my case, the thermostat was not performing properly 
and would not permit the temperature to come down low enough for the 
otterstat to turn off. In essence my thermostat was performing as if 
it had a setpoint too high. Replacing the thermostat solved my 
problem. You may be experiencing a similar issue, especially if you 
have an antique thermostat.

     Knut





--- In dmcnews@xxxxxxxxxxxxxxx, "dmcorlando2003" <SundeQuick@xxxx> 
wrote:
> Ok, here is the scenerio....
> My fans turn on when the A/C is on and turn off and on with the 
> cycling of the A/C compressor.  However, when they are activated 
by 
> the otterstat they stay on.  The system never cools past the first 
> mark in order for the otterstat to turn them off. 




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