I’m working on an Electrolux PLD2850RDC2 dishwasher, and I already replaced the heating element, but the unit still does not heat at all.
At this point, I expected it to start drying and heating water again, but nothing changed. If you’re facing the same issue, here’s what else you should check.
Quick Answer
If your Electrolux dishwasher is not heating after replacing the element, the problem is likely:
- Faulty high-limit thermostat
- Bad control board or relay
- Wiring issue preventing power to the heater
Step-by-step: How to fix a dishwasher that won’t heat
Step 1: Test the new heating element
Even new parts can be faulty.
- Use a multimeter to check continuity
- Ensure proper installation
If no continuity → the element is defective.
Step 2: Check the high-limit thermostat
This is the most common cause after replacing the element.
- It prevents overheating
- If faulty, it cuts power to the heater
Use a multimeter:
- No continuity = replace thermostat
Step 3: Inspect wiring connections
Loose or damaged wires can stop heating.
- Check wires leading to the heating element
- Look for burns, corrosion, or disconnections
A broken connection means no power reaches the heater.
Step 4: Test the control board or relay
The control board sends power to the heater.
- If the relay is faulty, the heater won’t activate
- Listen for a click during the heating cycle
No signal → possible control board issue.
Step 5: Verify water temperature cycle
Dishwashers heat water internally.
- Run a cycle and check if water gets warm
- If not, heating system is not activating
Step 6: Check safety components
Some models include additional safety parts.
- Thermal fuse
- Temperature sensors
If any fail, they can block heating completely.
Extra tips and best practices
- Always test parts with a multimeter before replacing
- Replace components with compatible parts only
- Label wires before disconnecting
- Run a full cycle after repair
Common mistakes to avoid
- Assuming the heating element is always the problem
- Skipping thermostat testing
- Ignoring wiring issues
- Replacing parts blindly without diagnosis
FAQs
Why is my dishwasher not heating even with a new element?
Because another component (like the thermostat) may be blocking power to the heater.
What does the high-limit thermostat do?
It protects the dishwasher by shutting off heating if temperatures get too high.
Is it worth repairing?
Yes, if it’s a thermostat or wiring issue. Control board repairs may cost more.
Conclusion
If your Electrolux dishwasher still doesn’t heat after replacing the element, don’t stop there. The issue is often the high-limit thermostat, wiring, or control board.
Testing step-by-step will help you fix it correctly and avoid wasting money on unnecessary parts.
