technice car fridge

Hiya Christine

I run an Evakool 60l and its out of warranty now (5 years)..It hasnt missed a beat..Anyway i was there the other week looking at there fridges just out of curiosity..I thought there fridges were very loud....Did it come with a Diagnosis sheet or error code sheet if things like this go wrong...

Anyway call the place you bought it from and talk to them about it...

The main issues with fridges are not the fridge it'self rather poor wiring & connections. With the engine & fridge turned off check the voltage at the battery & at the fridge then turn the fridge on & check again. Now start the engine & retest. If there is a large voltage drop (more than .5 volts) when the fridge is turned on then test accross each wire & plug to see where the loss is occuring. You may need to upgrade the wiring, solder connections or use better quality plugs.
If there is no or very little line loss (less than .2 Volts) then the problem is in the fridge.
That model fridge I believe has a 3 stage low voltage disconnect so it may be possible to select a lower voltage to get the fridge running but wont fix what appears to be a voltage drop problem.
Cheers Craig.........

Christine
Purely because it runs on power and also the vehicle while running it would strongly indicate a voltage level problem. That is the voltage which is actually getting to the fridge 12v input contacts/pins while it is operating.
The extra voltage applied by the engine/alt running is possibly overcoming the shortfall but it is there all the same.
When only on battery store 12v level supply, it may not be enough.
The lead to the fridge although connected by anderson plugs have little to do with it as the lead size into the fridge and also the integrity of the leads connection to the fridge terminals would appear to be lacking (and causing a voltage drop under load) at the fridge pins.
Connect two insulated fine wires to the 12v input pins and also plug the 12v lead into the fridge over these.
While it is running measure with a multimeter what voltage the fridge is really getting while running, then start the engine and measure again. The difference will be noticed.
A good 12v or more should be at the fridge 12v pins when running.
Because the load goes off the lead when fridge is stopped the voltage will be higher.

VD or Voltage Drop is no good for fridges and if there is a voiltage drop the fridge will go into error mode and stop running to protect itself.
Just because leads and connections look ok doesn't mean they are.
Thorough confirmation is required.
For best performance the 12v lead/supply to the fridge should be quite heavy wiring to minimize VD.
Sometimes the OE lead is not cripmed tight enough and so it does not clamp onto the pins securely. This causes similar trouble and usually shows as a warming up of the plug and pins while it is running. if your plug gets warm after runing a while on engine/alt 12v+ power then crimp up the plug with pliers to tighten the grip on the pins. It coild be just that.
Ross M

No crimp connections. Solder only.
Crimp is crap.