Counted from our technicians' notes on 48 Electrolux dryer service calls.
Two cycles to dry one load
A restricted vent is the most common reason. Lint builds up in the duct, the outside hood gets blocked, or a long run of crushed flexible duct chokes off the airflow. Newer Electrolux dryers watch for this and put EF1 on the display. Long dry times also show up when the dryer is on a 208-volt supply instead of 240, or when dryer-sheet film coats the moisture-sensor bars.
Tumbling with no heat
With an electric model, start at the breakers. The dryer draws on both legs of a 240-volt circuit. Lose one and the motor still spins the drum, but the heater gets nothing. When power checks out, the heating element or a thermal safety part may have opened. On gas models the likely causes are a weak igniter or failed gas valve coils, and gas repairs are a job for a technician.
Thumps, squeals and scraping
Worn drum rollers and idler pulleys make rhythmic thumping or squealing. When the motor hums but the drum doesn't turn at all, the drive belt has probably broken. A rattle is frequently just coins or zippers in the load, and a loose pedestal can clank.
Erratic controls are a separate issue. A failed control board or humidity sensor can make auto-dry cycles quit too early or run too long.
What the dryer display is telling you
These come from Electrolux's own dryer code list, and display formats vary by model.
| Code | What it usually means |
|---|
| E 42 | Door open. Make sure it's fully closed with nothing blocking it. |
| EF1 | Ventilation blockage. Clean the lint screen and check the exhaust duct and outside vent. |
| E 4 | Humidity sensor failure. Manual time cycles still work. Schedule service if it keeps showing. |
| H4 / B4 | Incorrect wiring, most likely from installation. |
| H2 / B2 | A problem with the power supply. |
Vent and lint checks
- Empty the lint screen each load. Every so often give it a scrub with detergent and water, and don't put it back until it's fully dry.
- Go outside and look at the vent hood. It should open freely, have no screen over it and sit at least 12 inches above the ground, and in Minnesota and Wisconsin it needs to stay clear of snow drifts.
- No heat? Reset both breakers.
- Make sure the cycle isn't set to Air Fluff, which runs without heat.
- Wipe the moisture-sensor bars with rubbing alcohol.
Open the door and look just above the opening for the model tag.
Every year and a half or so, have the entire vent run looked over and cleaned out, as Electrolux recommends. Southwest Florida laundry rooms are humid, so drying takes longer there and a dehumidifier helps. Expect a heat-pump model to take somewhat longer than a vented dryer. That's the tradeoff for its energy savings, not a fault.