
8
Error Fault Cause User Remedy
4 The oven is too hot The oven thermo switch
has tripped, because the
cavity temperature is above
350°C.
1. Contact your local service partner.
1. Open the front panel and press the green
knob to reset the safety circuit.
2. Check the power supply to the thermo
switch, 24 V.
3. Go to “Alarm test” in the “Test
functions” menu and check that the
overheat safety circuit for the oven cavity
is open.
4. In “Test functions”, activate the main
function, start up the main fan at
maximum speed. Do not activate the heat
function.
5. Check if the temperature in the oven
cavity is increasing. If yes, use a digital
multimeter to measure the solid state
relay. Replace it, if necessary.
6. If the error persists, contact your service
provider.
7 The oven
temperature sensor
is defective
The oven temperature
sensor is defective. The oven
must not be used until the
error has been corrected.
1. Contact your local service partner.
1. Go to “Oven test” in the “Test functions”
menu and check the oven cavity
temperature sensor reading.
2. If a core probe is present, place it inside
the oven as reference temperature
measurement tool.
3. If the reading is incorrect, check that the
temperature sensor measures correctly
according to the “PT1000 temperature
sensor table” on page 20. Follow the
wiring diagram to find the correct wires.
4. Check the connection on the IO board.
Follow the wiring diagram to find the
correct wires.
5. If the error persists, contact your service
provider.
Faultfinding list
GO Combi