Honeywell · Dehumidifier error code
Unlock what this code means, its causes, tests and parts
Full library + AI assistant for $34.90, one time.
Get lifetime accessOnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work.
Guide · DehumidifierThe bucket switch logic depends on a float and a small switch or magnet. A misseated or warped bucket, a float stuck with slime, or a failed float switch causes a false full signal. On units drained by hose, a loose hose connection can leak water into the bucket.
Guide · DehumidifierRule out the easy causes first: setpoint already reached, room too cool, dirty filter, blocked airflow, or water going down a hose. Then confirm the compressor actually runs and the coil gets cold. A compressor that runs with a warm coil is a sealed-system failure: refer, do not repair.
Guide · DehumidifierGravity drains fail from uphill or sagging hoses, a hose end sitting in water, missing washers or loose fittings. Pump drains fail from an unseated pump hose, kinks, a clogged pump filter screen or a dead pump. Most fixes are hose routing and cleaning.
Honeywell · Dehumidifier
E1 / E2
Temperature sensor fault
Honeywell · Dehumidifier
E3
Refrigeration protection / high room temperature
Honeywell · Dehumidifier
E5
Pump or drainage fault
Honeywell · Dehumidifier
EH
Humidity sensor fault
Honeywell · Dehumidifier
SA
Rest period (not a fault)