📖 Glossary, Part
What is an air dome?
The chamber at the base of the tub that traps air so the pressure switch can read water level.
A small inverted chamber at the bottom of the outer tub. As water rises it compresses the air inside, and that pressure travels up a hose to the pressure switch. Detergent residue and lint can clog the dome or its port, giving the control a false low reading and causing the machine to keep filling. Cleaning it is part of any proper water level diagnosis.
Where you’ll meet it
Repairs that involve air dome
Related terms
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