I happened to look at my solar charger display hooked to my coach battery with no solar panel connected and the meter said 17 volts with no dash light on, engine running it works light goes out as soon as engine starts Checked both battery voltages with meter and were at 17 volts shut it off immediately Checked all wires checked all connections and grounds everything's fine I purchased a new voltage regulator and it read 15.5 volts Took it back and got another one This one reads 13.01 at back of alternator + terminal battery voltage reads 12.87 with engine running Can't imagine two bad voltage regulators in a row and I took alternator to parts store they said its weak but still working within specs Sensor wire has 12v ignition wire has 12v on alternator What could be the problem?
Thanks in advance