Air Conditioning - A/C blower does not always shut off after the compressor cycles off

Hi,

Sometimes the blower keeps running after the compressor stops. If I turn my thermostat to 'off', then it stops. If I turn the thermostat to 'fan only' then back to 'auto' - it also stops. For the most part, it seems to be continuing to run though. And, it seems that sometimes the temp settings on the thermostat are a bit inaccurate and the compressor doesn't always kick on unless you turn the knob down a bit and then back up again.

From posts on this forum, I'm thinking that I should 1) try first replacing the thermostat- and if that doesn't work, probably 2) have a technician check the blower fan delay relay (unless this is something I can do).

Any other suggestions?

IF I replace the thermostat, must I first shut off part of the power supply to it?

Thanks,
three4rd

I would lean towards the stat also, and yes you need to kill power first.