If the bucket is full indicator on your dehumidifier is on, but the bucket is empty, or your dehumidifier is overflowing, you may have a problem with the float. This device is located near the bucket and moves up as the water level in the bucket rises. The float will trip the water level switch when the bucket is full. This is a safety device to prevent the unit from overflowing. When the switch is tripped, power to the compressor and fan motor circuits is disrupted until the bucket is emptied. Make sure that the float assembly can move or pivot freely so that it can trigger the level switch when the bucket is full. If the assembly is warped or damaged it should be replaced.

The compressor start relay attaches to the compressor in your refrigerator. If your refrigerator will not start, one of the most common parts to fail is the compressor start relay. Sometimes called the controller, this device is used to boost the compressor until the unit is running. Other common symptoms connected to start relays include: refrigerator will not start, will not cool, is making a clicking, humming or buzzing sound, or the compressor itself is warm to the touch. You may also smell a burnt plastic odor if the relay has failed. Shake the relay and listen for any rattling, as this is a sign that it is faulty.

The auto shut off switch is for dehumidifiers. If the water bucket is not attached properly the switch will ensure the compressor does not run. You may need to perform a continuity test on the switch to determine if the part has indeed failed since you cannot tell by looking at it. Make sure your dehumidifier is unplugged before you begin. Consider wearing gloves to protect your hands while performing this task. This is a genuine OEM part that comes straight from the manufacturer.