1, the electric oven is not hot, and the plug and socket are in poor contact; The electric heating element is disconnected; The connection of electric heating element is unstable; Poor contact of timer contact; Elastic fatigue of switch contacts, etc. Maintenance methods: repair or replace new parts, check and insert them firmly, replace electric heating elements, check switches, and repair or replace contacts.
2, the timer is not allowed, and the timer is stolen; The indicator light bulb is burnt out; The connection between the neon bulb and the current limiting resistor is loose. Maintenance method: replace the timer, check the circuit or replace the neon bulb, check and re-weld, thus eliminating the fault.
3. The sealing material of the leakage electric heating element of the electric oven is damaged, oil stain and dirt accumulate, and the insulating sleeve of the switch and thermostat is damp. Maintenance method: clean the insulation at the end of the electric heating element, or re-seal the nozzle after cleaning, and dry the wet part with the hot air of the blower.