Indesit Dishwasher: not heating

Professional Repair Guide

What is this symptom?

If your Indesit dishwasher is not heating, you may notice that wash cycles complete with cold or lukewarm water, leaving dishes dirty and unsanitized. A lack of steam at the end of the cycle indicates that the water is not reaching the necessary temperature for effective cleaning. This issue can consistently impact your dishwasher's performance.

Urgency: Medium

Important Tips for Indesit Models

  • Indesit dishwashers often fail to heat due to heating element, thermostat, or control module issues; control module failures are less common. Incorrect drain hose installation or clogged filter can subtly influence circulation and apparent heating issues.

Possible Causes

Faulty heating element

How to Identify: Dishwasher water remains cold through cycle, visual inspection may show burn marks or break; multimeter shows no continuity.

Part: Heating element

DIY Solutions

Test and replace heating element

Moderate 30-60 minutes
Tools Needed: multimeter, screwdrivers, nut driver
  1. Disconnect power to dishwasher.
  2. Access bottom panel and locate heating element.
  3. Use multimeter to test for continuity; if no continuity, remove and replace element.
  4. Reassemble and test dishwasher.
⚠️ Safety First: Ensure power and water are disconnected before working.

Inspect and test thermostat/temperature sensor

Moderate 30-60 minutes
Tools Needed: multimeter, screwdrivers
  1. Disconnect power.
  2. Locate thermostat/temperature sensor per manual.
  3. Test for proper resistance; replace if out of spec.
  4. Reassemble and test cycle.
⚠️ Safety First: Power must be disconnected.

Check water supply temperature and connection

Easy 10 minutes
Tools Needed: none
  1. Ensure dishwasher hot water line is connected to hot supply.
  2. Run hot water tap near dishwasher to verify hot water.
  3. Adjust home water heater to at least ~120°F if low.

Professional Repairs

Replace control board/electronic module

Estimated Cost: $150 - $350

Replace thermal fuse/high-limit switch

Estimated Cost: $30 - $90

When to Call a Professional

No improvement after DIY component tests and replacements
Visible electrical damage (burn marks, sparks)
Error codes related to heating on display

Preventive Maintenance

  • Clean filter and spray arms: Improves water circulation and may prevent apparent heating issues
    Frequency: monthly
  • Inspect electrical connections: Loose wiring that could lead to component failure
    Frequency: annually

Frequently Asked Questions

Why is my Indesit Dishwasher not heating?
The most common cause is a faulty heating element, but issues with the thermostat or water supply temperature can also contribute.
How do I fix Indesit Dishwasher not heating myself?
You can test and replace the heating element, inspect the thermostat, or check your water supply temperature.
How much does it cost to fix not heating?
Professional repair costs can range from $30 to $350, depending on whether parts like the control board or thermal fuse need replacing.
When should I call a technician for not heating?
If DIY solutions fail or you are uncomfortable with electrical components, it's best to call a technician.

References & Sources

Community Analytical Insights

Analysis based on real user discussions from appliance repair communities

Can I Fix This Myself?

65%
DIY Success Rate Difficulty: Either

Common Issues Reported by Users

  • Faulty heating element
  • Malfunctioning thermostat
  • Water pressure sensor issue

User Suggested Solutions

  1. Check and replace the heating element. Unplug the dishwasher, remove the lower spray arm, and access the heating element. Use a multimeter to test for continuity. If faulty, replace with a new one.

  2. Test and replace the thermostat. Locate the thermostat, usually near the heating element. Use a multimeter to check for proper function. Replace if defective.

  3. Adjust or replace the water pressure sensor. Inspect the sensor for blockages or damage. If necessary, clean or replace it to ensure proper water flow.

Analysis based on 1 community discussions
View Sources

Data compiled from real discussions on r/appliancerepair and r/Appliances:

  1. Dishwasher not heating properly/no steam after it is finishe...

Community Discussions

Dishwasher not heating properly/no steam after it is finished

The issue was resolved by adjusting the water pressure sensor.

DIY View on Reddit →

Source: Reddit r/appliancerepair

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