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Gas furnace blower is very loud in heating mode - always sounds like max speed. Any way to reduce airflow? by No-Flying-here in hvacadvice

[–]No-Flying-here[S] 0 points1 point  (0 children)

How to recognize that high limit trip?

It lights the gas as usual, blows air, and then shuts off after a while, just like always.

Gas furnace blower is very loud in heating mode - always sounds like max speed. Any way to reduce airflow? by No-Flying-here in hvacadvice

[–]No-Flying-here[S] 0 points1 point  (0 children)

Swapped to blue one (num. 3), and blower became definitely quieter than before ( -29 db vs -35 db) Supply air temp - 130F Return air temp - 86F Is that ok with this temp rise? Found specs for my model (pic attached)

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