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Error code reference

Electrolux Dryer Error Code F 03

No heat

Electrolux codesElectrolux dryer codes

No heat - problem with the heater system.

First step from the service manual

Touch the Stop/Clear pad to clear the F 03. Program the dryer for a NORMAL CYCLE with HIGH HEAT and touch START. Measure the voltage drop across the terminals of relay RL 2 on the electronic control board. If the meter reads 240 VAC on electric models or 120 VAC on gas models, replace the electronic control board. If the meter reads zero, remove power from the dryer and disconnect the black wire (electric models) or orange wire (gas models) from the relay. Reconnect power and measure the voltage drop between red wire on relay RL 2 to neutral. If zero, the wire between the incoming line and relay RL 2 is open. If 120 VAC, check the rest of the heating circuit.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What F 03 means on a Electrolux dryer

The F 03 error code on an Electrolux dryer indicates a failure in the heater system, meaning the dryer is running but producing no heat. This code is triggered when the electronic control board detects that the heating circuit is not functioning as expected during a cycle. The code applies to both electric and gas dryer models, though the specific voltages and wire colors involved in diagnosis differ between the two types.

The diagnostic process centers on relay RL 2 on the electronic control board, which is the primary switching component responsible for energizing the heating circuit. On electric models, the relay should pass 240 VAC when the dryer is set to a NORMAL CYCLE with HIGH HEAT. On gas models, the expected voltage across the relay terminals is 120 VAC. If the full expected voltage is present across the relay terminals during operation, the relay has failed to switch properly and the control board requires replacement.

If zero voltage is measured across the relay terminals, the fault lies upstream in the wiring or heating circuit rather than in the board itself. Disconnecting the output wire from relay RL 2 and measuring voltage between the red wire on the relay and neutral will distinguish between an open supply wire and a fault elsewhere in the heating circuit. A reading of zero at that point indicates the incoming line wire to the relay is broken or disconnected. A reading of 120 VAC confirms the supply side is intact and directs further diagnosis toward the remaining heating components such as thermal fuses, thermostats, or the heating element or gas valve.

Source: manufacturer service documentation.

Common causes of F 03

  1. 01

    Failed relay RL 2 on control board

    Part replacement

    If 240 VAC (electric) or 120 VAC (gas) is measured across the relay RL 2 terminals during a HIGH HEAT cycle, the relay is receiving power but not switching correctly, requiring control board replacement.

  2. 02

    Open wire between incoming line and relay RL 2

    Part replacement

    If voltage reads zero both across the relay terminals and between the red relay wire and neutral after disconnecting the output wire, the supply wire feeding relay RL 2 is broken or has lost continuity.

  3. 03

    Blown thermal fuse or failed thermostat

    Part replacement

    If 120 VAC is confirmed at the red wire on relay RL 2 but heat is still absent, a blown thermal fuse or failed operating thermostat in the heating circuit is likely interrupting the circuit downstream of the relay.

  4. 04

    Failed heating element (electric models)

    Part replacement

    On electric dryers, a burned-out heating element will prevent heat production even when the relay and supply wiring are functioning correctly. This is identified during inspection of the broader heating circuit.

  5. 05

    Failed gas valve or igniter (gas models)

    Part replacement

    On gas dryers, a faulty gas valve coil or igniter can prevent the burner from firing even when the 120 VAC control signal from relay RL 2 is present and correct.

See the test procedure for each cause

Frequently asked questions about F 03

What does F 03 mean on a Electrolux dryer?
F 03 indicates a no-heat condition in the dryer's heater system. The control board has detected that the heating circuit is not operating correctly during a drying cycle. The code applies to both electric and gas Electrolux dryer models. Clothes will tumble but will not dry because no heat is being generated.
Can I reset the F 03 code and will it clear the problem?
You can clear the F 03 code by touching the Stop/Clear pad. However, clearing the code does not repair the underlying fault. If the heating system problem is not corrected, the code will return when you run another cycle with heat. Clearing it is useful as a first step to confirm the fault is active before beginning diagnosis.
Is it safe to run my dryer when the F 03 code is showing?
Running the dryer with an active F 03 code means it is producing no heat, so clothes will not dry effectively. The dryer motor and drum will still operate. The more pressing concern is identifying the root cause, since a failed thermal fuse may indicate the dryer previously overheated, which should be investigated before continued use.
How much does it cost to fix an F 03 error on an Electrolux dryer?
Repair costs depend on which component has failed. A thermal fuse or thermostat replacement is generally the least expensive repair, typically in the range of $20 to $80 for parts. A heating element or gas valve repair may run $50 to $200 in parts. Replacing the electronic control board is usually the most costly option, often ranging from $100 to $300 or more depending on the model, plus any labor charges.
How do I diagnose whether the control board or the heating circuit is causing F 03?
Start by touching Stop/Clear, then program a NORMAL CYCLE with HIGH HEAT and press START. Using a multimeter, measure the voltage drop across the terminals of relay RL 2 on the control board. On electric models, a reading of 240 VAC points to a faulty control board. On gas models, 120 VAC at the relay terminals points to the same conclusion. A reading of zero directs you to check the supply wire and the downstream heating components including fuses, thermostats, the heating element, or the gas valve.

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