Can't Get Remote To Work.

1. The original remote only works on high speed: This could indicate a problem with the remote itself or with the fan's motor. It's possible that the fan's motor is only receiving power on the high speed setting, which would explain why the remote only works on high speed. However, it's also possible that the remote's low and medium speed settings are malfunctioning.
2. The new wall switch AndericChQ905 doesn't work at all: There could be a few reasons for this. One possibility is that the wiring for the AndericChQ905 isn't correct. It's important to follow the instructions carefully when installing a new switch or receiver, especially if the wiring information is difficult to understand. Another possibility is that the AndericChQ905 is defective and needs to be replaced.
3. The original remote had the receiver mounted within the motor box using a cube wire connector, but the Anderic receiver asks for it to be mounted at the top of fixture at the point of the lead wires coming into the fan stem: It's important to follow the instructions for the Anderic receiver carefully to ensure that it's installed correctly. If the receiver is not in the right location, it may not work properly.

Given these issues, I would recommend double-checking the wiring for the Anderic receiver to make sure it's installed correctly. If the wiring is correct and the receiver still doesn't work, you may need to contact the manufacturer for support. Additionally, if the original remote only works on high speed, it may be worth checking the fan's motor to make sure it's functioning properly.