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Lennox Control board repeatedly click with a fault code 3…

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Lennox Control board repeatedly click...
Lennox Control board repeatedly click with a fault code 3 flashes . I replaced pressure switch and it does the same thing. No 24v at the W terminal but have it at other terminals on terminal board
Submitted: 7 months ago.Category: HVAC
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Answered in 5 days by:
12/7/2017
HVAC Technician: Regan Land, HVAC Technician replied 7 months ago
Regan Land
Regan Land, HVAC Technician
Category: HVAC
Satisfied Customers: 768
Experience: Over 20 years of experience, NATE Certified, Licensed HVAC Contractor, Certified IAQ Specialist
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Hi, my name is ***** ***** I'll be assisting you with your question. I apologize for the extended wait time you experienced, I've only just come online now and would like to assist you with your question if you still need help. Can you please let me know if you still need help with your question?

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