I have a Minimax that is displaying the E04 code.
-I turn on the heater and get the "LO" message
- the fan comes on and after a while the display totally shuts off
- the unit restarts (including the fan) and displays the "LO" message
- after a few minutes i get the "E04" message
The vent on the top of the unit is clear, the air flow is pretty light when it starts.
I suppose the fan is faster after it starts heating, I just remember hearing the noise
I worked on it late at night and I did pull the leads off the flow switch and short them to see if that was the problem, no change.
I need to check with a meter and see if I have voltage or if the switch is made.
Any other tips before I dig into it?
Thanks again for the replies