Inlander Fridge RIR402W

[Tony Brooks]

Voltage at back of fridge measured around 11.86, fridge still did not want to work.

 

There was a fridge there before but it was 240v and boat was moored, I'm not completely off battery with a 12v fridge

 

 

I would say that 11.8 at the back of the fridge with the fridge running is nowhere near enough indicating voltdrop of the batteries are well charged. It is even worse if it was not running and would suggest a battery problem.

 

11.8 at the back of the fridge could momentarily drop to perhaps 10 volts or less with the starting surge.

 

If the batteries are well charged it is almost certainly undersized cables and if you are using the ex-240 volt cables they will defiantly be too thin. As has been said 1 sq mm conductor cross sectional area for each metre between battery and fridge with the same for the negative.