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Alternate blinking upon start up with the Lennox Merit.

Post created: 2014-08-26 Type of Equipment: Furnace Views: 577

This question was created on the page: https://www.furnacecompare.com/furnaces/lennox/merit.html.

On 2014-08-27 Danielle wrote:

If the lights are an alternating slow flash then it could be Watchguard 1 hour −− burners failed to ignite or lost flame 5 times during single

heating demand. If the lights are an alternating fast flash then it could be Improper main ground. OR: Line voltage below 90 volts.

To see more on the diagnostic codes see page 44 in the manual (https://www.lennox.com/pdfs/installation_maintenance/Lennox_ML193DF_IOM.pdf)


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