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M847D Two-Position Damper Actuator

M847D Two-Position Damper Actuator
alaAverage 4.9

18 reviews

May, 2018

alaTest has collected and analyzed 18 reviews of M847D Two-Position Damper Actuator. The average rating for this product is 4.9/5, compared to an average rating of 4.0/5 for other Air Conditioning for all reviews.

On average, users rate this product 97/100.

Review analysis

(Based on 18 reviews)

User Reviews  


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Showing 1 - 10 of 18 Show Reviews: in English

Consumer review (

Damper Motor Repair


Looks like whoever designed this damper did so with deliberate failure (and replacement) in mind. More money for the company, the distributors and the repair folks. Sound familiar?After several years of use, the nylon gear will strip. It can be...

when it works, it works

more reliable nylon gear

Jun, 2013

Consumer review (

Just what I needed


I received this in the mail earlier than had been promised. It came with instructions for installatin which were excellent. The whole process took 15 minutes and it operates perfectly. Very pleased.

Ease of installation

Feb, 2013

Consumer review (



The part worked fine and was easy to install. I save a lot of money by replacing it myself.

Jan, 2013

Consumer review (





free one

Jan, 2013

Consumer review (

damper motor


The product arrived in a timely manner and was just what I ordered. I was very pleased.

worked like it was supposed to


Jan, 2013

Consumer review (

Great resource


I was told by my local plumbing store that I would have to order the entire damper unit. I was thrilled that you had the linkage & motor in stock! The part was delivered on schedule to my doorstep! I will be sure to look to drillspot first in the...

Easy to install & was back in service in 5 minutes


Jan, 2013

Consumer review (

Great service and price.


I recently bought a "Cadillac" service plan for my FHA system. Naturally, dampers weren't covered .... . Oh well, got a quote, $349. Took the number off the unit, went to this site, had the part in a few days. Installed the new part in maybe 60...

Ease of install


Jan, 2013

Consumer review (

Quick deliver. Item as advertised!


Worked as advertised.. I'm no handy man and this took me 5 minutes to install.. Saved me 300 dollars by doing it myself.. U just need an Alan or "hex" wrench to unscrew the black bar on the mounted unit.. After that the installation process takes minutes!

Easy to install and delivered quickly

So far so good works as promised and its been a week

Nov, 2012

Consumer review (

Great replacement for HON damper actuator


Worked first time, no modifications required

Sep, 2012

Consumer review (

Damper Motor


The product was a direct replacement part, was advertised correctly, was delivered on time with no issues.

Jul, 2012