Comments about Aprilaire #4010 Transformer:

Used to replace a defective transformer for the humidistat power supply of an Aprilaire 700. The unit shipped was of different appearance to the picture. That was not a problem for me, but could be if the diagonal screw to the side is needed for mounting in a different application.The specification was the same - 10VA, 120V to 24V transformer. I will just purchase a generic replacement if needed in the future.I was initially confused on my furnace as the switched power supply is 12V, but it would appear that it's stepping down the voltage to 2.4V for the humidistat.

Comments about Aprilaire #4010 Transformer:

Had a power problem in the neighborhood which toasted a lot of electronics in the house. One of which was the transformer to the house humidifier. Item works fine easy to install. Make sure all power is disconnected prior to service, verify power is disconnected with a meter. Price could be better though

Comments about Aprilaire #4010 Transformer:

easy to install

Comments about Aprilaire #4010 Transformer:

simple.....did the job

Service and delivery comments:

quick delivery

Comments about Aprilaire #4010 Transformer:

Voltage output wasn't consistent from one to the next, but the vender took care of the problem, no questions asked. Price was excellent value, when all said and done.

Service and delivery comments:

Excellent customer service from this company- had a problem with voltage output of the transformer, and it was replaced promptly and with no hassles AT ALL. Replacement arrived even faster than the original. Second one worked fine. You're reading comments from a satisfied customer here.

Comments about Aprilaire #4010 Transformer:

Bought this for my Aprilaire humidiifer. This one is working fine. Hopefully it lasts longer than the last one which only lasted about 18 months.