Problem: I just installed my Aprilaire 700, and it is leaking water out of the bottom. What could be the problem?
Problems that I have seen that cause humidifiers not to drain properly or leak are:
1. Out of plumb or not level. Please take the cover that contains the fan off and check to see if you are level and plumb. Please see picture below for part identification.
2. While you have the cover off, pull the scale control insert part 4236 out and inspect it for cracks in the plastic. Separate the distribution tray from the scale control insert and look to make sure the colored spot on the water panel is facing up.
3. Assemble back making sure the drain hole in the bottom of the scale control lines up with the hole in the body of the humidifier. Make sure feed tube and nozzle are in the right position attached to the distribution tray.
There is no reason why the humidifier should leak if all these guide lines are followed.