The 2 center burners will not heat up but the switches do light up and do go on. There are no wire rips or corrosion anywhere on this unit I dont think it was ever really used. I think a wire could be loose something very easy to fix. The outside burners work great and hit very quickly. No other one like it on the market. Selling as is but is in working condition

The Digital Cast Iron 4 Burner Hot Plate by LabHouse is a high-quality soldering hot plate designed for precision and efficiency. With a high thermal conductivity plate and temperature stability within ±1.5°C, this hot plate is ideal for PCB repair, SMD rework, BGA reballing, and LED repair. The anti-slip design, cooling ventilation system, and overheat resistant construction ensure safety and stability during use. The LED digital display allows for easy monitoring of the temperature range of 30-500°C, while the 2000W power supply provides fast heating for consistent results. Made in China, this corded hot plate is a valuable tool for professionals in the welding and soldering industry.