Can I use a 1250 3m Filtrete Ultra Allergen Filter in a High Velocity Furnace?
I had a problem last night. I came home after one week with my new Honeywell 8500 programmable thermostat and the furnace wasn't running as it was supposed to be. The last error on the furnace was an inductor airflow error. Is it possible that the new thermostat's algorithm has the furnace cycles per minute higher than my previous cheapo honeywell thermostat? I was reading over the furnace manual and it said to use "high velocity" filters only. I was thinking that more CPM combined with the wrong filter may have caused the furnace pressure to become imbalanced. After I reset the furnace, everything has been running fine today. I don't see "high velocity" anywhere on this 3m 1250 micron filter. It only says "reduction filter".

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