Thread Number: 85768
/ Tag: Other Home Products or Autos
Overheating Furnace Question |
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Post# 1103167 , Reply# 1   1/4/2021 at 20:12 (1,179 days old) by Yogitunes (New Jersey)   |   | |
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Post# 1103186 , Reply# 3   1/4/2021 at 21:58 (1,179 days old) by gansky1 (Omaha, The Home of the TV Dinner!)   |   | |
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I use the lower-end pleated filters year-round, change them every 4-6 weeks. The first 3M super-filter I used many years ago caused the A/C coil to freeze within a few days. Neighbor is an HVAC engineer, said my system can't handle that dense filter material. Summer season the filters are grayish-brown since we live on the edge of the Dustbowl, this is normal. Winter, we have a whiteish dust on the filters, no doubt it comes from the humidifier I have on the furnace. |
Post# 1103187 , Reply# 4   1/4/2021 at 22:08 (1,179 days old) by SudsMaster (SF Bay Area, California)   |   | |
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The other thing to check is that there may be a filter hidden inside the plenum for air return to the furnace. At least that was the case in my house. Since there were already filters at two return registers on the floor of the living quarters, I simply taped over the ends of the slot for the extra filter down in the crawl space. Furnace works fine without that extra filter (it was a cheap spun glass type anyway).
But it does sound like the humidifier might be the culprit. I'd also be concerned that the gray matter on the filters now is some sort of mold or fungus. |
Post# 1103195 , Reply# 5   1/4/2021 at 22:34 (1,179 days old) by DADoES (TX, U.S. of A.)   |   | |
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