Kenmore Dishwasher Not Drying Dishes — Drying System Types by Platform

Wet dishes after a completed cycle frustrate Kenmore dishwasher owners, but the solution depends entirely on understanding which drying technology your unit employs. This is where Kenmore's multi-manufacturer strategy creates genuine confusion: a Whirlpool-platform 665 model uses an exposed heating element for active drying, while an LG-platform 630 model relies on condensation drying with a stainless steel tub. These are fundamentally different systems with different failure modes, and tips that fix one platform are irrelevant (or counterproductive) for the other.

Drying Technologies Across Kenmore Platforms

Whirlpool 665 Platform — Heated Dry (Exposed Element)

The majority of Whirlpool-manufactured Kenmore dishwashers (model prefix 665) use a visible calrod heating element at the bottom of the tub. During the "Heated Dry" phase, this element radiates heat that evaporates moisture from dish surfaces. Air circulation is passive — hot air rises, contacts wet dishes, absorbs moisture, and vents through the door vent.

This system works well for ceramics and glass but is less effective on plastics because plastics retain less heat than glass/ceramic and therefore do not evaporate water as readily.

LG 630 Platform — Condensation Drying (No Exposed Element)

LG-manufactured Kenmore dishwashers use condensation drying — the final rinse uses very hot water (higher than the wash temperature) to heat the dishes. After draining, the residual heat in the dishes causes water to evaporate. This moisture then condenses on the cooler stainless steel tub walls and drains away by gravity.

This system has no heating element cycling during the dry phase (saving energy), but relies on the stainless steel tub being cooler than the dishes. If the tub is already hot (multiple back-to-back cycles or hot ambient kitchen), condensation drying is significantly less effective.

Kenmore Elite (Bosch Platform) — Condensation + Crystal Dry

Select Kenmore Elite models built on the Bosch platform use a mineral-based heat storage system (zeolite crystals) that absorbs moisture and releases heat during the dry phase. This hybrid system requires no exposed element and no external energy input for drying. Failure of this system is rare but the mineral cartridge has a finite life (approximately 10 years).

Diagnosing Drying Failure by Platform

Whirlpool 665 Platform — Heating Element Issues

Element Burned Out (Most Common — 45% of drying failures on this platform): The calrod heating element is the same component used during the wash to boost water temperature. If it burns out, both wash temperature and drying performance suffer. You can visually inspect the element — look for blisters, breaks, or discolored spots that indicate a short.

Test with a multimeter: Disconnect power, access the element terminals from under the tub (through the kick panel), and measure resistance. A good element reads 15-30 ohms. An open element (infinite ohms) is burned out.

DIY Difficulty: Moderate Parts Cost: $25–$65 Professional Repair Cost: $150–$280

Repair Steps:

1. Disconnect power at the breaker.
2. Remove the kick panel to access the underside of the tub.
3. Locate the two element terminals protruding through the tub floor.
4. Remove the wire leads and lock nuts (3/8-inch socket).
5. Push the old element up and out through the tub floor.
6. Clean the mounting grommets and insert the new element.
7. Secure with lock nuts (6 ft-lbs torque), reconnect wires, and test.

Heated Dry Not Selected: On 665 models, the Heated Dry option must be selected separately from the wash cycle on many models. If it is not selected, the dishwasher skips the entire drying phase. Check that the Heated Dry button LED is illuminated before starting the cycle.

Vent Not Opening (15% of cases): Some Whirlpool-platform Kenmore models have an automatic vent that opens during the dry phase to allow moist air to escape. If the vent wax motor or solenoid fails, the vent stays closed and moisture has nowhere to go. Check the top of the door for a small vent flap — it should open during the dry phase.

LG 630 Platform — Condensation Drying Issues

Rinse Water Not Hot Enough (Most Common — 50% of drying failures on this platform): Condensation drying depends on dishes being significantly hotter than the tub walls. If the rinse water is not reaching full temperature (typically 160-170F on the final rinse), dishes do not absorb enough heat to drive effective evaporation.

Causes: Failed thermistor giving inaccurate temperature readings, or heater unable to reach target temperature due to mineral scaling on the concealed element. The heater on LG-platform models is hidden beneath the sump and not user-accessible for visual inspection.

DIY Difficulty: Moderate to Difficult Parts Cost: $22–$50 for thermistor; $45–$100 for heater assembly Professional Repair Cost: $160–$300

Plastic Tub vs. Stainless Tub (Critical Distinction): Condensation drying ONLY works effectively with a stainless steel tub. If your LG-platform Kenmore has a plastic interior tub (some lower-end models), condensation drying will always underperform because plastic does not cool as rapidly as stainless steel, reducing the temperature differential that drives condensation.

For plastic-tub LG-platform models, the best solution is not a repair but a technique: select the highest temperature rinse option available, and crack the door open 2 inches immediately after the cycle completes to allow moist air to escape.

Rinse Aid Empty or Not Dispensing: Rinse aid is critical for condensation drying systems — it reduces water surface tension, causing water to sheet off dish surfaces rather than forming droplets. On LG-platform Kenmore models, an empty rinse aid dispenser reduces drying effectiveness by 40-60%. Check the rinse aid level indicator on the inside of the door and refill as needed.

Tips That Work for Your Specific Platform

For Whirlpool 665 (Heated Dry) Models:

• Always select the Heated Dry option
• Load plastics on the top rack ONLY (farther from the element reduces warping risk, but also reduces drying of bottom-rack items)
• Do not overload — air must circulate between items for evaporation
• Check that the door vent is not blocked by a cabinet face or countertop overhang

For LG 630 (Condensation Dry) Models:

• Use rinse aid — it is not optional on condensation systems, it is essential
• Run the hot water at the kitchen sink for 30 seconds before starting the dishwasher (ensures first fill is hot)
• Select the highest temperature rinse option your cycle offers
• Do NOT open the door immediately after the cycle — wait at least 5 minutes for condensation to complete
• Avoid running back-to-back cycles as the tub does not have time to cool between runs

For All Kenmore Platforms:

• Angle cups and bowls to prevent water pooling in their concave surfaces
• Place items so water runs off during the cycle rather than collecting
• Avoid mixing plastic and glass on the same rack level — they dry at different rates

When Poor Drying is Normal (Not a Failure)

Certain situations produce wet dishes without any component failure:

• Plastics on any platform: Plastic has low thermal mass and does not retain enough heat to evaporate water effectively. This is inherent to the material, not the dishwasher.
• Short cycles: Quick wash and express cycles often skip or abbreviate the dry phase to save time.
• Cool ambient kitchen: In winter, a cold kitchen means the tub stays warmer relative to dishes on condensation systems, reducing effectiveness.
• Heavily loaded cycle: Dishes packed tightly prevent air circulation, trapping moisture between items.

Heating Element Replacement vs. Rinse Aid — Cost Comparison

Before replacing the heating element on a Whirlpool-platform model, try maximum rinse aid first. A significant portion of "not drying" complaints on 665 models are actually rinse aid issues masquerading as element failure. Water beading (forming droplets) rather than sheeting off dishes indicates a rinse aid shortage, not an element problem.

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Kenmore dishwasher not drying? Our technicians identify whether your unit uses heated or condensation drying and diagnose the specific component failure — element, thermistor, or vent. Schedule a repair →