I have al310x, fridge not receiving 12v from starter battery. M1 is 14.2v, F3 is 6.3v when engine off, when engine on still 6.3v .when fridge load is switched on the current drops to zero. Fridge heat element is good, M1 is good , M2 is good,both 14.2v.
Any suggestions
Thanks

Hello from wales, we have rimor 670 2001 with the AL310x model fitted.