hairydog
Guest
Lots of people know why.
The design specs of Dometic fridges are that they work up to six degrees off level. That's an uncomfortable slope: a coffee mug will slide across the table at that angle.
Thetford fridges are only designed to cope with three degrees of tilt. That's quite difficult to achieve in some places.
However, it isn't quite as simple as that. The circulation is driven by convection currents, not a pump. If the coolant is circulating when you park up, the convection will continue to work.
The problem comes when the thermostat decides it is cold enough and turns the burner off. After the convection has stopped, the slope stops it being established again.
This is why a fridge can appear to be fine on a certain slope at one time, but not at another time.
Of course, some fridges don't have a thermostat in the gas. They just have "off high, medium, low" on the gas knob. I suspect that this is partly to keep the circulation going (though it' mostly for cheapness)