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How can I lower the resistance of a thermistor by a certain amount?

Hi, I'm trying to make my window air conditioner run just a little bit cooler. It shuts off around 67 degrees and I would like it to go maybe down to 63 or so. I know it uses a thermistor to sense the intake air temperature. I tested the resistance of the thermistor and it goes down as the air gets warmer. For instance, it might read 2600 ohms when the intake air is 60 degrees and 2400 ohms at 65 degrees. I basically want to somehow lower the resistance by maybe 5% so the AC will stay on a little longer. I guess a potentiometer wouldn't work, because that would only raise the resistance right?

Thanks, Michael

Reply to
Michael Shaffer
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I think that's a NTC thermistor.

Perhaps try a resistance in parallel with the thermistor. The added conduction will make the air conditioner cool until the combined resistance increases up to the threshold.

D from BC British Columbia Canada

Reply to
D from BC

Looks like something around 47K might work.

Tam

Reply to
Tam

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