3 way Repco fridge failing on Gas.

Hi All.

I have searched the archives for an answer to this before posting but to no avail.

I have a 3way Gas portable fridge purchased from Repco 3 years ago and up until now it has served its purpose well.

On a recent trip though, it failed on Gas. Another family in our entourage has the identical fridge and when I compared the heat coming out the top of the boilers on both fridges, my fridge was noticabley cooler (couldn't leave hand over the top of good fridge but could on the busted one)

I have done some testing since returning home and the fridge works fine on 240v chilling down to ~4deg but when I switch over to gas, it still keeps the fridge cool but only at ~14deg. (I havent bothered testing on 12V as this has never been reliable but rather a mechanism to keep the fridge as cool as possible whilst in transit from home to camp ground)

SO on this basis I believe the cooling system is intact (ie no leakage in the cooling system) and that the problem lies soley with the gas funtion.

What I have noticed during testing is that when it is on gas, the pilot flame never varies in its size/heat. (ie the controls on the fridge for the gas has a min through to max setting.) It doesnt matter where you have the dial positioned, the flame never increases so Im assuming that theres a blockage of some sort or that that dial isnt functioning?

I dont think that there is a thermostat on the gas function of this fridge that overrides the gas controls.

Can anyone offer any advice on what the problem might be and some steps I could take to possibly fix it?

Also happy to hear of recomendations on a good place in Brisbane who would be able to repair it if the problems too complex to solve at home.

Thank you all in advance.

Andrew.