Each reflow in use process, will appear some fault, sometimes a small fault all have to wait for the engineer to deal with, the serious influence production efficiency, the following will give you said a common reflow welding machine malfunction and solution, convenient for your reference and process faults in time.
1, reflow soldering failure: when red light, buzzer of nights
Reason: control buzzer time relay doesn't work; The control thermocouple open circuit; SSR damage control section of the main circuit.
Solution: check control buzzer time relay; check