Lab Autoclave Sterilizer 18L Vacuum Steam Mini Thermal

Long story short, it failed after ~50 cycles. Mechanically it seems pretty solid. Welds look good, there's both an independent thermal shutoff and independent temperature/pressure steam relief valve, which is surprising but nice.The electronics inside are a dumpster fire. Typical back alley grade. All of the relays are used, scratched to heck and certainly pulled from some e-waste. They sanded down the part numbers on many of the ICs so you don't have model numbers. The control software itself has bugs where solenoids get left in strange states if you cancel and restart a run vs power cycle.On mine, the pfet high side switch for the steam relief solenoid failed short. That one did have a model number, and they're using a 30V rated part on an almost 28V reactive load, which is terrible engineering. Only took $0.30 to fix, but I'm probably going to completely replace the whole control board given how badly its designed.If you're not competent in electronics, I'd say avoid. If you're comfortable troubleshooting fairly simple electronics with no hand-holding, it's a good value.

I bought this on December 2020. Never worked. Contacted Customer service IN CHINA. Through WhatsApp the sent "Instructions to find the failure" I did all they asked fro a month and a half with messages twice a week.At the end they sent this picture of the "back panel" for me to remove and "identify if the wiring was properly installed"I will not touch a "wiring panel" I'm a doctor not an electrical engineer. After that no answer. $895.00 down to the drain, don't waste your money,