Water Leaks; Fan Does Not Function - Aprilaire 1830 Troubleshooting Manual

Water Leaks

Water collects in the drain pan below the coils and is directed through the drain tube to the outlet at the
outlet side of the dehumidifier.
1. Level the unit front to back, and side to side. Make sure any hard pipe or drain fittings are
completely glued to the drain pan outlet.
2. Clean or replace the drain tubing. The drain tubing must have a continual downward slope to
the drain.
IMPORTANT: If using ½" vinyl tubing for the drain line, ensure that there are no upward bends
in the tube that could act as a secondary trap – this will cause an air-lock that could prevent the
flow of water to the drain.
3. Remove the side panel (on the same side as the drain tube), slowly pour a pint of water into the
drain pan near the return bends of the coils. After the running trap fills, the water should flow
out the drain tube to the drain.
4. Plug or raise the drain tube sufficiently high to prevent water from pouring out of the drain
tube. Slowly pour in an additional pint of water until the bottom of the drain pan is filled. Allow
15-20 minutes for the water to stand in the drain pan and look for any signs of leaks from the
drain pan and drain tube. Unplug the drain and allow the water to drain out.
5. Reinstall the side panel.
Note: Lab testing showed the potential for condensation to collect under the drain pan when the
dehumidifier was running constantly for 2-4 days in 80°F/60% conditions. During this time no water
leaked form the dehumidifier. We began insulating the underside of the 70/95pt drain pan the 47
week of 2014. If a customer has a unit built before 472014AXXXXX and you can verify that it is a high
load/constant run condition, a secondary drain pan is recommended. The constant run condition should
only occur when the unit is first installed. Once the space/home has been dried out the dehumidifier
will cycle, eliminating the drain pan condensation. All 130pt have insulated drain pans.

Fan Does Not Function

1. Make sure the outlet the dehumidifier is plugged into is live (120 VAC available).
2. Turn the control OFF and the ON/OFF toggle switch OFF.
3. Remove the side panel and disconnect the blue and yellow fan wires from the Internal Control
board.
4. Inspect the large disk-like component (this is a varistor and it is usually blue or black in color) on
the Internal Control board right next to the fan terminals. If this component looks scorched or
cracked, replace the Internal Control board (5444).
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