HOUNO CPE - Page 53

TROUBLESHOOTING ERROR CODES
SERVICE MANUAL 53
Error Code 4
The overheating switch of the oven chamber is o because the oven chamber temper-
ature has risen above 350°C/662°F. Press the Q1 button at the bottom of the oven to
reset the switch. If the oven comes with to fan motors, there are 2 overheating switches.
Steps Check list Solution
1 Go to the test menu (main alarm) to see
if the overheating thermo switch has
tripped. Reset the switch.
2 Test whether the fan is running and
whether the solid state relay is working
properly.
3 Check the cable and the cable plugs.
4 - Change the overheating
sensor.
Error Code 5
The fan motor is too hot (above 120°C/248°F). Let the motor cool o for about 20-30
minutes and then try turning it on again.
Steps Check list Solution
1 Go to the test menu (main alarm) to see
which information is displayed.
2 Check the cable and the cable plugs.
3 Check the door sensor since 5VDC may
aect the overheating circuit.
4 Check the fan motor windings. Change the fan motor.