Hi
I am experiencing some problems with my back fan on the heater head. I have read on the forum that the back fan should always be on, but mine is never on. So, I started to measue the voltage.
The back fan is a 5V fan so I assume I should read a 5V current on the connectors to the fan. Problem is, I only read 2,5 V. But this is when the fan is connected, if I disconnect the fan and measure on the connector directly i get a nice 4,9V reading.
Anyone has any idea why the voltage drops to half when I connect the fan?
I have also tested the fan with external power source, it really needs approx 5V to start, so mine 2,5V is not enough
Best regards
Daniel