I want to insert a relay into my fridge fan (which is a water pump) circuit.
I just cannot work out how to get it sorted!!
Power goes into the fridge controller thru the Lg +ve (2nd from top) & I think, out via the Sm +ve (3rd from top) when turned on via the thermostat with F being, presumably, the switch.
Do I run relay 87 to Pump +ve with the Pump -ve running to F on the controller with the Sm +ve to 85?
TIA I am completely lost here!!