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Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6022
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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The thermostat lennox ac #13acx-030 reads conneciton

Customer Question

The thermostat for my lennox ac #13acx-030 reads conneciton failure, how do I fix?
Submitted: 1 year ago.
Category: HVAC
Expert:  Phil replied 1 year ago.

Hello the problem could be a loose connection at the thermostat or where those wires attach inside the furnace... or it could be an electronics computer card failure. if you have an electronics repair sterioscopic microscope I can coach you on how to diagnose and repair the micro computer card.

Let me know a lot about your skill sets so that I can coach you most effectively.

We can go from there.