I have an error code 1 on my thetford fridge what does this mean

SOURCE: thetford caravan fridge freezes all food in fridge

Thats a Norcold compact fridge. The most likley problem would be the thermister. Need to do an ohms reading. From inside of the fridge remone the thermister from the fins and unplug the wires. With a VOM set it on Ohms, touch the wires with the probes/ does not matter which probe to wire/ hold the bulb end of the thermister between your fingers, your reading should stat at about 7000 Ohms. Stick the bulb end of the thermister in a glass of ice water, reading should start climbing and go to about 22000 Ohms. If this happens the thermister is good and you need to look elsewhere. If it does not test out you need to replace the thermister. The thermister is a thermostat that controls the heat source that makes the fridge cool. If the thermister reads good you may want to get the circuit board tested.
Hope this helps
Thank you for using Fixya
Jerry

SOURCE: I have a Thetford N112 which will not cool the

un plug the heating element from the circuit board and ohm it out. also check fuse on board. but sounds like the heating element has gone out. if when you ohm it its on 0 its bad

SOURCE: I have error code 8 on thetford fridge how do I remove code to used on 240 v

If switching off and on again doesn't clear fault 8 (ac volts 20% lower than spec) you may need to replace the board for one with a resetting fuse.