Slow Cooker / Crock-Pot Not Heating — Fixes
Slow cookers are about as simple as appliances get, so a unit that won't heat comes down to power or a failed element. Here's how to check.
1. Check Power and Setting
Confirm it's plugged into a working outlet (test the outlet with another device) and the dial/control is actually set to LOW, HIGH, or WARM — not OFF. On digital models, make sure a cook time is set, not just the clock. Loose cord connections are common on older units.
2. Test for Heat Properly
Slow cookers heat slowly — that's the point. On LOW it can take an hour to feel warm. Fill it with water, set it to HIGH, and check after an hour before deciding it's not heating. The lid and stoneware also need to be in place to hold heat.
3. Failed Heating Element
If it's getting power, set correctly, and still cold after an hour on HIGH, the heating element (wrapped around the inside of the base housing) has likely failed. Heating elements aren't practically repairable on a slow cooker, and the units are inexpensive — replace it.
4. Cracked Stoneware Note
Not a heating issue, but worth knowing: a cracked ceramic insert should be replaced (replacement crocks are sold for many models) — never use a cracked one, as it can fail during cooking.
Parts & Tools
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FAQ
First confirm power (try another outlet) and that it's set to LOW/HIGH/WARM. Remember it heats slowly — test with water on HIGH for an hour. If it stays cold, the heating element has failed and the unit should be replaced.
It heats gradually — up to an hour on LOW to feel warm. That slow, steady heat is normal. Keep the lid on to retain heat.
Always unplug an appliance and shut off its water supply before servicing. This guide is informational and not a substitute for a qualified technician.