I have two Aprilaire dehumidifiers.
The larger one (model 1720) broke.
Aprilaire says they won't warranty it unless installed by an HVAC company (An interesting notion that could easily be subject of a challenge in a NJ state court).
Anyway my unit broke. The squirrel cage blower fan has a dead capacitor. Or so it appears.
A gigiziallion calls later I find one company that can get me a replacement blower fan (part #4646). They are almost impossible to get.
The cost: $749.00 ~!!
Yup, Seven-Hundred-&-Forty-Nine Dollars, for a squirrel cage fan.
It's a fan~!!! And the manufacturer won't sell me the part. They leave the customer to find a distributor all on their own.
If I put some other fan in the cycle I would likely fail 'cause the bloody thing sends a signal to the power supply board that tells it to power up the Compressor pump. No signal = no de-humidification compressor pump.
So it is with great wrath that I heartily dis-recommend AprilAire.