Refrigerator temp

[Skipg]

We have a Domeftic refrigerator with a thermistor to regulate temp. The thermistor is in the highest position on the cooling fin ,but I can only maintain 40-44 degrees. Outside temp is 90 degrees and rv is under cover. Is this temp normal? Anything I can do to get temp lower? Also have two small air circulation fans in the refrigerator.thanks for any feed back.

[Old-Biscuit]

1st off.....Model of that Dometic would be helpful

Moving thermistor.....that suggests you do not have 'adjustable temp settings" but an 'auto temp control' model

Unplug thermistor leads from lower circuit board (usually on upper left area of board....2 leads)
Run fridge for 12 hrs w/o thermistor...no temp sensing feedback to thermostat so fridge will cooling continuously.
Food compartment should get very cold provided circuit board is functioning properly and cooling unit is capable of full cooling