Staff Answer
Sep 27, 2026 - 11:44 AM
On most Norcold 3-ways, DC mode isn't automatic. You select it by hand while driving. For the temperature swings on shore power, check that the thermistor is clipped to its fin, the RV is level and the vents are clear. Send us your model number and we'll help narrow it down.
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.
