LG DLE7400WEDryer
Error Code d90
Duct blockage warning - ductwork approximately 90% blocked
Moderate
Address soon - your appliance may not work properly
Also displayed as: d90
What This Means
Ductwork 90-95% blocked by lint buildup or debris; House exhaust system severely blocked; Ductwork too long or too many elbows
Other Error Codes for DLE7400WE
tE2
Temperature sensor (thermistor) failure - shorted circuit
nP
No power supply to controller
tE1
Temperature sensor (thermistor) failure - open circuit
gAS
Gas supply error - gas not supplied to dryer (Gas model only)
PF
Power failure / power supply interruption
d80
Flow Sense duct restriction indicator - moderate blockage detected after cycle
PS
Power supply error - low voltage or incorrect wiring (Electric only)
HS
Humidity sensor failure