Wednesday, June 22, 2016

AC wont turn on unless manually depressing contactor -- next step?

I have a lennox HS29 air conditioner. Yesterday it stopped turning on.

I reset the breakers -- it still wouldnt power up. After doing some reading I got a suggestion to manually depress the contactor with a screwdriver, which does power it up -- so thats a start!

Where do I go from here with troubleshooting? Would low batteries in the thermostat be a culprit? Is there a fuse or something I should check?

I'm going to have to call a pro tomorrow if I don't make some progress, and I really don't have the money. Any input would be greatly appreciated!

submitted by /u/acurafail
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