Aprilaire 4655 Manual Humidifier Control - White

Perfect replacement for the humidstat th...

Perfect replacement for the humidstat that had failed in my Aprilaire 500M humidifier. 2 screws to attach the control wires, reinstall with 4 sheet metal screws holding it in the cold air return duct, and the house is more comfortable again. Relative humidity is up from 24 to 35% in 2 days.Read full review

Verified purchase:  Yes • Condition: new • Sold by: naomfilte0

Piece of junk

These things are designed from the factory not to turn on until it reaches 38% humidity which the manufacture says it's reading the humidity in your house. If I had 38% humidity in my house I wouldn't need a dam humidistat would I!!!!Read full review

Verified purchase:  Yes • Condition: new • Sold by: tjbarge

Nice replacement

The old one quit working. As I looked for a replacement I wondered if one existed. After a little research this one popped up. The wire connections were the same. A couple of screws and presto. Now the humidifier is working great. Read full review

April Aire

It was very easy to install and works perfectly. I was replacing the original Aprilaire from 19 years ago.

Verified purchase:  Yes • Condition: new • Sold by: sweetnsimplejoys

Replacement humidstat works perfectly!! Everything was just as promised and delivered on time!

Absolutely works beautifully!! Went from a humidity level in our home of less than 24 to 31 in a matter of days! It is much more comfortable now in the house!!

Verified purchase:  Yes • Condition: new • Sold by: hvac_supplier

THUMBS UP!!!

Great product, easy install.

Verified purchase:  Yes • Condition: new • Sold by: victorydance2009

Excellent product!!

Easy to install, works like a charm. And good price. Definitely would recommend to a friend.

Verified purchase:  Yes • Condition: pre-owned • Sold by: najlepiejmi80

Good Inexpensive Replacement Part

It was a match for the original and works well

Verified purchase:  Yes • Condition: new • Sold by: sweetnsimplejoys

Looks good to me.

Came as new, repackaged. Haven't installed yet since I bought it for a friend in need, who is out of town. Looks like it will be fine. I'll update if not.

Verified purchase:  Yes • Condition: pre-owned • Sold by: joelandtina

Good product

Verified purchase:  Yes • Condition: new • Sold by: hoovere