Upgraded my printer's hotend about a year ago to the E3D V6 Lite. Worked amazing for about a year until recently I started getting thermal runaway errors on my Ender 3. I've tried everything from replacing the power supply to replacing the board, replacing the thermistor and heater cartridge wires but nothing I've done has helped alleviate the problem. I noticed the issue tended to happen after the first layer when the parts cooling fans turned on. It seems the printer has trouble staying at the desired print temperature of 222 C as it begins to drop after the fans turn on. Any information or help with issue would be greatly appreciated!