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BillyHvac
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 22115
Experience:  Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
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We have a lennox elite heating system with 3 zones that will

Customer Question

hi.. we have a lennox elite heating system with 3 zones that will not start. I can hear the zones clicking and turning green ... but furnace does not start
Submitted: 9 months ago.
Category: HVAC
Expert:  BillyHvac replied 9 months ago.

Hello,

in the furnace is a circuit board with lights.

See page 48 HERE and tell me which code the light pattern relates to.

Customer: replied 9 months ago.
ok .. there were two lights on the bottom panel - 1 red and 1 green. They were both on .. and then both went out.
Let me go and look one more time. I need 2 minutes
Customer: replied 9 months ago.
they are both out
Customer: replied 9 months ago.
actually I turned the power off and back on .. now they are both flashing slowly
Expert:  BillyHvac replied 9 months ago.

ok is the thermostat is asking for heat?

Customer: replied 9 months ago.
all 3 zones .. and I can hear them trigger. and all 3 zones have green lights
Expert:  BillyHvac replied 9 months ago.

Thank you, ***** ***** the exhaust fan in the furnace running? This code means the exhast should be running but is not....if there is no exhaust motor we need to see if stuck,,(rodent/bird etc..

Customer: replied 9 months ago.
something just happened..
I hear the fan now
and both lights are flashing quickly
Expert:  BillyHvac replied 9 months ago.

quickly at same time or alternating?

Customer: replied 9 months ago.
same time
Customer: replied 9 months ago.
another fan or something just started ..
Expert:  BillyHvac replied 9 months ago.

and is burner on?

Customer: replied 9 months ago.
that is what I hear
Customer: replied 9 months ago.
we feel warm air now from the vent in zone3
Expert:  BillyHvac replied 9 months ago.

ok so far the power off/on did a reset....is filter clean and pipes above snow?

Customer: replied 9 months ago.
to both ... I think it just needed the reset
all 3 zones have heat
Expert:  BillyHvac replied 9 months ago.

excellent...the furnace works with different power than the zone and thermostats.

If it fails again note light pattern and let me know. I have free follow up for 30 days after service is rated at top of page.

I thank you

Billy

Customer: replied 9 months ago.
thank you
Expert:  BillyHvac replied 9 months ago.

better than a Sunday service call!

Thanks for your patience.

Billy

Expert:  BillyHvac replied 9 months ago.

Did you still want the question to remain open?

Expert:  BillyHvac replied 9 months ago.

To move off active list just rate service