I have a DC558UL that the thermostat never turns off. Is the Thermostat repl kit 639866 the fix?

Question

I have a DC558UL that the thermostat never turns off. Is the Thermostat repl kit 639866 the fix?

Brand new DC558UL never turns off. All positions of switch result in temps well below freezing. It looks like the thermistor is slipped inside a rolled section of the freezer bottom. Does the fridge need dissembled to replace it or can a replacement be attached to the fridge wall instead of tucked into the sheet aluminum?

Status: Open Mar 30, 2019 - 06:59 AM

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Staff Answer

Sep 28, 2026 - 07:29 AM

On a brand-new DC558UL, this should be handled under warranty. Contact your dealer or Norcold. The thermistor placement is set by the factory, so don't relocate it without their guidance, since moving it changes how the fridge regulates temperature.

If you have any questions, just reach out at info@rvfridgeguys.com or call us at 800-712-8822. You can find everything we carry at www.rvfridgeguys.com.

I have a DC558UL that the thermostat never turns off. Is the Thermostat repl kit 639866 the fix?

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