Tip & How-To about Heating & Cooling

How to clean your squirrel cage

1- I am not an expert on furnaces just a home handyman.

2- This should/might work on other types of home heaters. Anything that has a squirrel cage. Some of these procedures may be of assistance to you. But no guarantee though.

3- This is written in the hopes that you too will be able to save a couple hundred dollars and get back some of the efficiency that your system has probably lost over the years.

So here we go;

Things you will need some tools, patience, coffee, digital camera, pen and paper, patience and about 4 hours of your time. Did i mention patience?


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1 Answer

This blower motor lost some blades some how threw it all out of wack (wobbly) so much it hitting casing. Motor works. Would I need to replace everything or just the blade wheel ? It is an older amana air command comb gas furnace/ac. How much does this type of repair cost?

you may have to replace the blower because the squirrel cage is out of balance due to the loss of blades.
and may have damaged the bearings/bushings
if you can get just the squirrel cage that great

Sep 13, 2013 | Heating & Cooling

1 Answer

My furnace just started running loud and floor began vibrating close to unit. What does this mean?

More than likely the squirrel cage blower motor is defective or the blower cage bearings are in need of replacement.

Feb 07, 2012 | Heating & Cooling

1 Answer

replacing wheel blower on an american standard gas furnace commercial model TDD120C960A0

This is for the main blower right? if so...

You'll want to have the replacement parts around for this, usually the only thing to break is the motor, but occasionally the squirrel cage will bust up.
First unplug the unit, then proceed to disconnect everything in the path of the blower assembly. Take note of exactly which wires go where and whatnot (taking a picture is a good idea).
The assembly itself sits in a track and is held in place by 2 1/4" hex head screws. remove those then slide the entire assembly out of the unit.
Loosen, with a small Allen wrench, the little screw holding the motor shaft to the squirrel cage.
The motor is held to the assembly with a few bolts, easy to spot, they should be 7/16th hex heads.
Remove those completely, undo the ground (green wire) then drop the old motor out of the assembly. This may be very difficult (Use the weight of the motor to your advantage).
If your squirrel cage looks fine (no broken pieces) then all you need is the new motor.*
You'll need the harness from the old motor, strap that on in the same position as it was on the old motor.
Slide the new motor into the assembly and bolt it in with those 7/16th heads. then position the squirrel cage on the shaft in a way that it rotates freely and easily, as centered as it can be, then tighten the little allen head... super tight, you don't want that to come loose.
Then slide the whole assembly back into the furnace and reverse all that previous undoing.

*If the squirrel cage needs replacing, remove the old one (it'll just pull out once you've undone the motor and a few small screws) slip the new one in, and continue.

If the wires from the motor seem confusing, green is the ground (put a loop on it and screw it to the assembly), the rest go to the circuit board. White is Neutral, Red and Yellow are spares, Black goes to "Cool" and Blue goes to "Heat". I can't remember the name of those types of plugs, but they're often available at auto parts shops. You want the 1/4" size. the neutral may be the 3/16" or 1/8th size.

May 06, 2011 | Dayton Gas Furnace Heater

1 Answer

I want to clean the squirl cage fan on my Carrier handler. It's 12 years old and never really been cleaned. What is the best cleaning procedure to maximize its efficiency.

The best way to really clean the squirrel cage is to remove the entire indoor blower motor housing assembly out of the furnace then remove the squirrel cage from the motor shaft and pressure wash the squirrel cage. Make sure you don't use to much water pressure as you might knock off any balancing weights that may be attached to the one or more of the vanes. Make sure the cage is completely dry before you re-install it back on the motor shaft.

Nov 16, 2009 | Kitchen Ranges

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