Kenmore Dishwasher Heating Element Replacement Guide — Cost, Signs & DIY Tips

The heating element in your Kenmore dishwasher serves two critical functions: it heats water during the wash cycle to improve cleaning performance and it provides the heat for the drying phase. Kenmore dishwashers use two fundamentally different heating element designs depending on the OEM manufacturer. Whirlpool-built models (665-prefix) typically use an exposed calrod-style element visible at the bottom of the tub. LG-built Kenmore Elite models (722-prefix) use a hidden (condensation) heating system integrated into the tub base. This design difference affects replacement difficulty, cost, and whether DIY is practical.

Decode Your Model Number

• 665 — Whirlpool: Exposed calrod element at the bottom of the tub. Accessible from below, connects through the tub floor with two terminal nuts.
• 722 — LG (Kenmore Elite): Hidden heating element in the tub base. Requires significant disassembly to access.
• 587 — Frigidaire: Exposed element similar to Whirlpool design.
• 630 — Samsung: Hidden element, similar to LG approach.

Signs Your Kenmore Dishwasher Heating Element Needs Replacement

Definitive indicators:

• Dishes come out cold and wet — no heat during wash or dry cycles
• The sanitize cycle fails to reach temperature (a sanitize indicator light may flash or an error code appears)
• Visible damage to the element: cracks, breaks, blistering, or discoloration on the calrod surface (665-prefix models where the element is visible)
• Tripping the kitchen circuit breaker specifically when the heating phase engages — a shorted element draws excessive current

How to test before replacing (665-prefix models with exposed element):

1. Disconnect power at the breaker
2. Access the element terminals through the bottom panel
3. Disconnect one wire and test with a multimeter set to resistance (ohms)
4. A good element reads 15–30 ohms. Open (infinite) or near-zero ohms means the element has failed.

Symptoms that mimic element failure:

• Water not hot enough — check your home water heater temperature first (should be 120°F minimum for dishwashers)
• Dishes dry poorly but water feels warm — likely a vent or fan issue, not the element
• Only the dry cycle seems cold — some models use a separate heating circuit for drying vs washing. The control board relay for the dry heater may have failed rather than the element itself.

Heating Element Cost Breakdown

The exposed calrod element (665-prefix) is a straightforward DIY replacement. The hidden element (722-prefix) often costs more in labor because the tub needs to be partially disassembled.

How to Replace the Heating Element

Whirlpool-based models (665-prefix) — exposed calrod:

1. Disconnect power at the breaker
2. Remove the lower dish rack and spray arm to access the tub floor
3. Remove the lower kickplate panel below the door
4. Under the tub, locate the two element terminals — they pass through the bottom of the tub with rubber grommets
5. Disconnect the wires from each terminal (note which goes where, though most elements are not polarity-sensitive)
6. Remove the lock nuts from the terminals using a 3/8-inch or 7/16-inch wrench
7. Push the element terminals inward and lift the element out through the tub
8. Compare the old element with the new one to confirm identical shape and terminal spacing
9. Feed the new element terminals through the tub floor holes. Ensure the rubber grommets seat properly to prevent leaks
10. Hand-tighten the lock nuts, then snug with a wrench (do not overtighten — the tub material can crack)
11. Reconnect wires, replace the kickplate, spray arm, and rack
12. Restore power and run a heated wash cycle. Place your hand near the bottom of the tub after 10 minutes — you should feel warmth.

LG-based models (722-prefix Kenmore Elite) — hidden element:

This is an advanced repair that typically requires removing the tub assembly or significant internal disassembly. For most homeowners, professional service is recommended for hidden element replacement.

Tools required: 3/8-inch or 7/16-inch wrench, Phillips #2, needle-nose pliers, multimeter, towels for residual water.

When to DIY vs. Call a Professional

• Exposed calrod (665-prefix): Good DIY candidate. Moderate difficulty, 45–60 minutes. The main risk is overtightening the terminal lock nuts and cracking the tub.
• Hidden element (722-prefix): Professional recommended. The element is integrated into the tub base, and accessing it requires substantial disassembly. $150–$300 total is typical for professional replacement.
• If the breaker trips: A shorted element that trips the breaker should be replaced promptly. Continued use risks damaging the control board or wiring.

How Long Does a Kenmore Dishwasher Heating Element Last?

• Whirlpool exposed calrod (665-prefix): 8–15 years. These are simple resistive elements with no moving parts. Hard water scale buildup is the primary degradation factor — scale insulates the element, causing it to overheat in spots and eventually fail.
• LG hidden element (722-prefix): 10–15+ years. Protected from direct contact with water and detergent, hidden elements last longer but cost more when they do fail.

Maintenance Tips to Extend Heating Element Life

• Run a citric acid cycle monthly (use a dishwasher cleaner or 1 cup of citric acid powder in an empty hot cycle) to dissolve hard water scale from the element surface
• Avoid placing plastic items directly on the bottom rack where they can melt onto the exposed element (665-prefix models)
• Use rinse aid to reduce mineral spotting — less mineral deposit on the element means less scale buildup
• If you have hard water, consider a whole-house water softener — this is the single most effective way to extend element life

Decode Your Kenmore Dishwasher Model Number

Every Kenmore repair starts with identifying the OEM manufacturer from the first three digits of your model number:

• 665 — Whirlpool (most common for Kenmore dishwashers 2000-2020). Uses Whirlpool W10/WP part numbers. Diagnostic mode: press three buttons in sequence within 5 seconds.
• 587 — Frigidaire/Electrolux. Uses Frigidaire-specific parts. Diagnostic: hold Start and Cancel simultaneously.
• 630 — Samsung (newer models). Samsung-specific parts and diagnostics.
• 722 — LG (Kenmore Elite). Uses LG part numbers (EBR prefix). Diagnostic: press Power then Start within 3 seconds.

This decode determines which parts fit your machine, which diagnostic procedures to use, and where to find the best prices. The Kenmore label on the front means nothing for parts sourcing — always reference the OEM part number.

Cost-saving strategy: Once you know the OEM manufacturer, search for the Whirlpool or LG OEM part number directly instead of the Kenmore-branded equivalent. The identical part under the OEM brand name typically costs 30-40% less.

Common Kenmore Dishwasher Error Codes by Platform

Whirlpool-based (665-prefix): F-number/E-number system. F1 E1 (control board), F2 E2 (stuck button), F5 E1/E2 (door switch), F6 E1-E4 (communication), F8 E1 (water inlet), F9 E1 (drain).

LG-based (722-prefix Kenmore Elite): LE/IE (motor/inlet), OE (drain), HE (heater), tE (thermistor), FE (overfill).

Knowing your platform's error codes helps diagnose the failing component before ordering parts.

FAQ

How much does it cost to replace a Kenmore Dishwasher Heating Element?

DIY cost is $20–$120 depending on exposed (665-prefix) vs hidden (722-prefix) design. Professional installation runs $100–$350 total. Order the Whirlpool or LG OEM part number for 30–40% savings over Kenmore-branded parts.

Can I replace the Heating Element in my Kenmore Dishwasher myself?

For Whirlpool-based models (665-prefix) with an exposed calrod: yes, moderate difficulty, 45–60 minutes. For LG-based models (722-prefix) with a hidden element: professional service recommended due to extensive disassembly.

How do I test if my Kenmore dishwasher heating element is bad?

Disconnect power, access the element terminals from below, disconnect one wire, and test with a multimeter. A good element reads 15–30 ohms. Open (infinite) or near-zero indicates failure.

Why is my Kenmore dishwasher not drying dishes but washing fine?

Some models use separate circuits for wash heating and dry heating. The dry-specific relay on the control board may have failed while the element itself is fine. Also check the vent assembly and rinse aid level before condemning the heating element.

---

Need help replacing your Kenmore Heating Element? Our certified technicians handle Heating Element replacements daily with same-day service and a 90-day warranty. Book a technician →