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Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6022
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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Have a Lennox Pulse furnace Model G2104/5-100-1. Problem not

Customer Question

Have a Lennox Pulse furnace Model G2104/5-100-1.
Problem not igniting consistently. Have to turn off 2-4 times at thermostat before it will run. Will run correctly for several hours then quit and have to do the turn off and back on till it begins to run again
Submitted: 1 year ago.
Category: HVAC
Expert:  BillyHvac replied 1 year ago.


have you checked/replaced the spark plug or sensor assembly yet?

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