Error Code d90
Ductwork approximately 90% blocked — FlowSense alert
Moderate
Address soon - your appliance may not work properly
Also displayed as: d90
How to Fix
- 1
Do not use the dryer until the exhaust system has been cleaned and/or repaired.
- 2
Inspect the entire exhaust duct run for lint buildup, kinks, or debris blockage.
- 3
Check the outside vent hood for obstructions or damage.
- 4
Clean ductwork thoroughly.
- 5
Ensure duct run is not excessively long; use rigid metal duct where possible.
- 6
Error code is displayed for 2 hours only; opening the door or pressing POWER clears the display.
- 7
If restrictions persist after cleaning, reroute or shorten the exhaust system.
Other Error Codes for DLGX7801VE
FlowSense four-bar restriction detected — ductwork significantly restricted
EEPROM error — EEPROM operation is abnormal
Humidity sensor failure
Steam pump AD value below 10 — pump abnormal
Thermistor fault — blower housing thermistor open or shorted (alternate code)
Power supply wiring connection error — wire connection wrong or loose (electric dryer only)
Steam generator thermistor open or shorted
Door switch abnormal — detected only in TEST MODE