Indesit Microwaves Error Codes

F01

Microwave will not start; display is on, buttons respond, but pressing START does nothing and no relay click is heard.

Primary relay drive fault on main control board

F02

Microwave stops heating shortly after start; display shows F02 and the fan may continue running.

Magnetron overheat or thermal protection fault

F03

Microwave runs but does not heat; display shows F03 after a few seconds of operation.

Magnetron or high‑voltage circuit failure

F04

Microwave stops mid‑cycle and displays F04; sometimes accompanied by a loud humming or buzzing noise before shutdown.

High‑voltage overcurrent or short‑circuit protection

F05

Microwave display shows F05 and the unit will not start; interior light and fan do not come on when START is pressed.

Door interlock switch circuit fault

F06

Microwave keypad or touch controls are unresponsive or behave erratically; F06 appears on the display.

Keypad or touch control panel communication fault

F07

Microwave display shows F07 and the clock or timer cannot be set; sometimes the display is blank or flickering.

Low‑voltage power supply or display driver fault

F08

Microwave shows F08 and will not start; grill or convection functions (if fitted) may also be disabled.

Cavity temperature sensor or NTC fault

F09

Microwave displays F09 and may shut down unexpectedly during grill or convection use.

Grill element or convection heater circuit fault

F10

Microwave shows F10 and the turntable does not rotate during cooking.

Turntable motor or rotation sensor fault

F11

Microwave beeps and displays F11 when attempting to start; sometimes accompanied by a brief relay click and immediate stop.

Inverter or power module fault (on inverter‑type Indesit microwaves)

F12

Microwave shows F12 and none of the cooking functions can be selected; sometimes the oven light and fan still operate in test modes.

Communication error between user interface and main control board

F13

Microwave displays F13 and may shut down or refuse to start after prolonged use, especially on grill or convection settings.

Cooling fan or airflow fault

F14

Microwave shows F14 and the interior light does not work, even though the unit heats normally.

Cavity lamp or lamp circuit fault

F15

Microwave displays F15 and the clock resets intermittently or the unit loses power briefly during operation.

Mains input or line filter fault

F16

Microwave shows F16 and convection fan does not run on convection or combination modes.

Convection fan motor fault

F17

Microwave displays F17 and the child lock cannot be disabled, or the keypad remains locked even after following the manual instructions.

Child lock logic or memory fault

F18

Microwave shows F18 and stops heating when using sensor cooking or auto programs that rely on humidity detection.

Humidity or steam sensor fault

F19

Microwave displays F19 and may shut down or refuse to start after a power surge or outage.

EEPROM or configuration memory error

Symptom

Microwave continues to run the fan for a very long time after cooking has finished.

Cooling fan overrun or control issue

Symptom

Microwave convection mode does not reach or maintain the set temperature; food takes much longer to bake.

Convection heating performance issue

Symptom

Microwave cooking is uneven; some areas of food are overcooked while others remain cold.

Uneven heating / distribution fault

Symptom

Microwave display is dim, flickering, or partially missing segments, but cooking functions still work.

Display module or backlight failure

Symptom

Microwave display works and timer counts down, but the unit stops intermittently or resets during cooking.

Intermittent power or control reset

Symptom

Microwave door will not close fully or pops open during operation.

Door misalignment or latch failure

Symptom

Microwave door will not open or is very difficult to open after cooking.

Door latch or release mechanism jammed

Symptom

Microwave emits a burning smell or visible smoke from vents during or after cooking.

Overheating or component burning

Symptom

Microwave emits a high‑pitched squeal or chirping noise from the turntable area.

Turntable friction or motor noise

Symptom

Microwave exterior or control panel becomes excessively hot to the touch during normal use.

Poor ventilation or cooling fault

Symptom

Microwave interior light does not come on, but the unit heats and operates normally.

Cavity lamp failure

Symptom

Microwave interior light, fan, and turntable operate when the door is closed, even without pressing START.

Door interlock safety failure (stuck ON)

Symptom

Microwave interior shows arcing (sparks) during cooking, often near the waveguide cover or cavity walls.

Cavity arcing / waveguide contamination

Symptom

Microwave is completely dead: no display, no interior light, no response when buttons are pressed.

No power / dead appliance

Symptom

Microwave keypad buttons do not respond or only some buttons work.

Keypad membrane or control panel failure

Symptom

Microwave leaks water or condensation from the door area or underneath after cooking.

Water leakage / drainage issue

Symptom

Microwave produces excessive condensation or water droplets inside the cavity and on the door.

Condensation / moisture accumulation

Symptom

Microwave runs (light on, turntable rotating, fan running) but food does not heat up at all.

No microwave output / heating failure

Symptom

Microwave runs but makes loud buzzing, humming, or grinding noises during operation.

Abnormal operating noise

Symptom

Microwave sparks or arcs when using the grill function, especially near the grill element.

Grill element arcing

Symptom

Microwave trips the household circuit breaker or blows the fuse as soon as START is pressed.

Short circuit under load

Symptom

Microwave turntable does not rotate, but heating still occurs.

Turntable drive failure