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My lennox exterior unit will not run. Two red lights

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flashing on the panel at...
My lennox exterior unit will not run. Two red lights flashing on the panel at the same time.
Submitted: 2 years ago.Category: HVAC
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Answered in 10 minutes by:
1/29/2016
HVAC Technician: Tim H., HVAC Professional replied 2 years ago
Tim H.
Tim H., HVAC Professional
Category: HVAC
Satisfied Customers: 3,972
Experience: Experienced in all aspects of HVAC, both residential and commercial.
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Hi, I'm Tim and I'm an HVAC expert here to assist you with your questions. Please provide all information I request as it makes it more difficult to troubleshoot something when I'm not there onsite. Essentially, you become my eyes and ears. Thanks for the opportunity to help. At the end of our dialog, you will have a chance to rate my service, but please wait until we are finished and you're satisfied you have all the information you need. Please be patient as many times we work with several customers at once.

Sychronized flashing of both LED's means "Normal operation, power to board". Are you getting 24 volts to the contactor?

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