Ask PYS: Power

Our 12V Nova Kool Fridge Shuts Down Periodically, on Jul 12, 2016 asked:

Our 12V Nova Kool fridge shuts down periodically on its own accord. Sometimes while plugged in at the dock sometimes at anchor. Last year we installed a new thermostat switch and new house batteries. This last weekend we came into dock and discovered a defrosted fridge. We played with the thermostat switch inside the fridge and nothing. Then turned off the fridge at the electrical panel and turned it back on again and it started right away. Any thoughts? - John

Based on the behavior you described, it sounds like a loose connection. Can you confirm that your battery voltage is steady? Have you had the opportunity to measure voltage at the fridge when it’s turned off? This would be a good way to establish if it is an external issue or internal issue with the fridge.  - Jeff