Kenmore Washer Not Heating? Causes & Fix

Why won't my Kenmore washer heat the water?#

Here's the key fact most people miss: most Kenmore washers have no internal water heater — they take hot water straight from your household water heater through the hot fill hose. So on a normal Hot or Warm cycle, "not heating" almost always means a problem in the hot-water supply path, not inside the washer. Some 796 and 417 models add a small heater, but only for Sanitize or Allergen cycles.

Kenmore not heating: ranked causes (normal cycles)#

How to diagnose a Kenmore washer that won't heat#

1. Check the water heater first. Run the hot tap at the laundry sink — if it never gets hot, the problem is the water heater, not the washer.
2. Feel the fill. Start a Hot cycle and feel the water entering the tub in the first 30 seconds. Cold water on a Hot cycle points at the hot-side inlet-valve solenoid, which has an open winding and won't open (the cold side still works, so it always fills cold).
3. Check the hot supply valve. The wall shutoff for the hot line should be fully open; old gate valves can seize partway closed on mineral buildup.
4. Clean the hot inlet screen. Disconnect the hot fill hose and inspect the mesh screen in the valve port — hot water deposits scale faster, so this clogs and starves the hot flow.
5. Confirm the hoses. Make sure the hot (usually red-marked) hose runs from the hot supply valve to the hot inlet on the washer — reversed hoses give you cold on a hot call.
6. Purge a long pipe. If the water heater is far off, run the laundry-sink hot tap for 30 seconds before starting so the washer fills with hot rather than the cold that was sitting in the pipe.

Supply-valve, screen, and hose checks are DIY; an inlet-valve replacement is moderate work.

What about the Sanitize/Allergen heater?#

If your 796 (LG) or 417 (Electrolux) model heats fine on normal cycles but a Sanitize or Allergen cycle no longer reaches its high temperature, that's the internal heater or its sensor. Test the heating element for continuity (an open reading means it's burned out) and the thermistor, which should read around 50,000 ohms at room temperature; a wrong reading keeps the board from firing the heater.

Is a Kenmore not-heating repair worth it?#

Usually yes, and often it's free — an open supply valve, a cleaned screen, or a corrected hose swap fixes many cases with no parts. An inlet valve is inexpensive. Set your water heater around 120°F for effective laundry, and purge a long pipe before washing. For a diagnosis, book a repair.

Kenmore washer not heating: frequently asked questions#

Does my Kenmore 110-series washer even have a heater?#

No. The Whirlpool-built 110-series has no internal heating element — it uses your household hot water. If the water isn't hot, the fault is in the supply path (valve, solenoid, hose) or the water heater itself.

Why does it wash in lukewarm water when I select Hot?#

Usually a partly clogged hot-side inlet screen letting cold flow freely while restricting hot, giving a lukewarm mix — or a water heater set too low. Aim for about 120°F at the heater.

Only the Sanitize cycle isn't getting hot — what's that?#

On 796 or 417 models with an internal heater, that points at the heating element or its thermistor, since the internal heater only runs on Sanitize or Allergen cycles, not normal ones.