D7 is a bemf diode for the relay coil, so anything like 1N4001 types will do.Dear Mike
I have the same model and i found D7 diode was faulty , i removed the zener diode and power on dehumidifierView attachment 204784 and its working properly, but i dont know the voltage of this diode if i solder it on that place with new one, can u please help me to find out what value of faulty zener diode D7
