ai6yr,
@ai6yr@m.ai6yr.org avatar

Today's first repair task: replacing a non-functional vent fan in one of the affected rooms from my plumbing disaster. Wasn't working before the deluge, just an opportunity to fix it while the walls are open.

ai6yr, (edited )
@ai6yr@m.ai6yr.org avatar

Removed the fan from the box yesterday, to attempt to find an identical fan at the local hardware store. These unplug and pop out with a strategic pry of a screwdriver.

ai6yr,
@ai6yr@m.ai6yr.org avatar

Was not able to find an exact match at the hardware store, and bought a new one. Today I was going to pull the old box and remount the new box, but I realized in my sleep that the fan motors MIGHT be compatible. A search online shows many (expensive) universal fan replacements. However, opened the new fan I purchased and see the mounts and sizing are identical!

ai6yr,
@ai6yr@m.ai6yr.org avatar

Removed the old and new fan motors, and they are identical in size. Low end bathroom fan technology has not changed in 50 years, same design.

ai6yr,
@ai6yr@m.ai6yr.org avatar

Old bathroom fan motor.

ai6yr,
@ai6yr@m.ai6yr.org avatar

New motor in old fan housing! Had to flip the mounting screws around, but easy enough with a torx screwdriver. Tested it on the wall and runs fine. Double checked that the fan is in the same place. Next step is to go reinsert into old housing, will do that later.

rrmutt,
@rrmutt@mastodon.social avatar

@ai6yr I just replaced one exactly like that and I couldn’t help wondering how much quieter and more efficient a little CFM might make a 3D printable replacement fan

ai6yr,
@ai6yr@m.ai6yr.org avatar

@rrmutt That's a great idea!

ai6yr,
@ai6yr@m.ai6yr.org avatar

Old fan housing. Looks like they painted the house with this open.

ai6yr,
@ai6yr@m.ai6yr.org avatar

Whirr!!! Done, working like new. Didn't need the walls open after all.

Whirring 50cfm fan motor - black metal now cleaned, everything reinstalled.

KrajciTom,

@ai6yr

Might as well go whole-hog, and rewind the windings on the old motor.

ai6yr,
@ai6yr@m.ai6yr.org avatar
bosquebill,
@bosquebill@techhub.social avatar

@KrajciTom @ai6yr Don't laugh—a replacement motor for mine is $300. Think I can do without. In NM don't have to worry about humidity build up.

ai6yr,
@ai6yr@m.ai6yr.org avatar

@bosquebill @KrajciTom $300?!?!?!?! Yikes. Well, replacement motors for these are going for more than a new unit, with the same motor. So, saved money by cannibalizing a new unit 🤷

BillySmith,
@BillySmith@social.coop avatar

@ai6yr

It's a protocol that has lasted. :D

With some of the older motors, the designs were made so that the coils could be replaced.

I don't know if that's a thing with the current designs.

ai6yr,
@ai6yr@m.ai6yr.org avatar

@BillySmith Looks like that would work too, but I suspect the cost of sourcing coils would not be a great savings over the motor swap. The coil could indeed be switched out.

homelessjun,

@ai6yr very quiet, high efficiency, automatically adjust speed to sensed humidity. very long lasting motor. but it is just a suggestion:

https://na.panasonic.com/us/home-and-building-solutions/ventilation-indoor-air-quality/ventilation-fans

ai6yr,
@ai6yr@m.ai6yr.org avatar

@homelessjun Thanks! I'm sure those are superior to these...

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