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Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6022
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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I just noticed that they were six flashes on my Lennix

Customer Question

I just noticed that they were six flashes on my Lennix furnace stating that it's a pressure switch lock out. I noticed that the filter is dirty but what else could be the problem?
Submitted: 1 year ago.
Category: HVAC
Expert:  Daniel Plourde replied 1 year ago.

Hi i am dan. I can help you with this. Did you try resetting the power to the furnace and notice if the small combustion blower on the top comes on?

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