Without heating,

fan

Don't turn around

breakdown

Treatment: Please check the main working voltage of the induction cooker: 300V (here refers to the position of the coil seat after the coil is removed).

voltage

If this voltage is too low, it means

electric capacity

(5UF or 4UF) Bad or synchronous

circuit

Bad sampling high-power circuit), 18V (driving voltage, to the third pin of LM339), 5V (to CPU and wire reel).

sensor

)。 First check the high pressure.

electric resistance

, change the value. No, check the drive tube, number two

high-voltage capacitor

Detection resistance (240K~900K): There are two detection circuits. One is from

roll

Out of the detection circuit, all the way is the voltage detection circuit from 220.

If the G pole of IGBT is not 0V,

Change 339; 0.33uf

capacity

If it is missing, it must be replaced. Discovery of power-on delay circuit

Triode

The emitter and collector of Q6(8550)E were damaged by breakdown. If not, change it to 339. IGBT

If you don't understand

My problems/arguments/problems/troubles

You need to ask

Professional maintenance

The staff came to handle it.