Siemens Dishwasher: not lighting

Professional Repair Guide

What is this symptom?

If your Siemens dishwasher isn't lighting up, you may notice the control panel and display appear dead with no response to inputs. This common issue can stem from a power supply interruption, a malfunctioning control panel, or a faulty control board. Thankfully, there are several DIY troubleshooting steps you can take before calling a professional.

Urgency: Medium

Important Tips for Siemens Models

  • Siemens official documentation emphasizes checking mains connection and circuit breaker before assuming internal faults
  • Siemens models with digital display may need reset if temporary electronic glitch occurs

Possible Causes

Power supply interruption

How to Identify: Dishwasher shows no lights at all; other devices on the same circuit may also be unpowered; breaker may be tripped.

Part: Mains power connection / circuit breaker

Control panel or display failure

How to Identify: Panel remains dark even with correct power; may have visible damage, unresponsive buttons, or require replacement.

Part: Control panel/display assembly

Control board failure

How to Identify: Power is present but no lights and no response; board components may show burn marks or be unresponsive after reset attempt.

Part: Main control board

DIY Solutions

Check power supply and breaker

Easy 10–20 minutes
Tools Needed: None
  1. Confirm dishwasher power plug is fully inserted into outlet.
  2. Check house circuit breaker for tripped breaker and reset if needed.
  3. Test outlet by plugging in another device to verify power is present.
⚠️ Safety First: Do not work on electrical panel if unfamiliar — contact electrician if uncertain.

Ensure door is fully closed and latched

Easy 1–2 minutes
  1. Open and firmly close dishwasher door until you hear the latch click.
  2. Try turning on dishwasher control — lights should activate if door latch safety was preventing operation.

Perform power reset

Easy 10–15 minutes
Tools Needed: None
  1. Turn off the dishwasher at the breaker or unplug it.
  2. Wait at least 10 minutes to drain control board capacitors.
  3. Restore power and attempt to turn on the dishwasher.

Professional Repairs

Replace control panel/display assembly

Estimated Cost: $100–$300

Repair/replace main control board

Estimated Cost: $150–$400

Fix internal wiring/terminal connections

Estimated Cost: $80–$200

When to Call a Professional

If internal wiring inspection is needed
If control board replacement is required
If dishwasher shows signs of electrical damage or burning smells

Preventive Maintenance

  • Inspect power cord and connections annually: Loose connections leading to power loss/no lights
    Frequency: annually
  • Clean door latch area routinely: Door safety switch misreads preventing control activation
    Frequency: monthly

Frequently Asked Questions

Why is my Siemens Dishwasher not lighting?
The most common causes are power supply interruptions, control panel failures, or issues with the control board.
How do I fix Siemens Dishwasher not lighting myself?
Check the power supply, ensure the door is closed, and perform a power reset to troubleshoot.
How much does it cost to fix not lighting?
Professional repairs can range from $80 to $400 depending on whether you need to replace the control panel or the main control board.
When should I call a technician for not lighting?
If DIY solutions don't resolve the issue, or if you're uncomfortable troubleshooting, 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?

60%
DIY Success Rate Difficulty: Either

Common Issues Reported by Users

  • Faulty control board
  • Burnt-out LED indicator or display
  • Power supply issues (tripped circuit breaker or blown fuse)

User Suggested Solutions

  1. Check the power supply by ensuring the circuit breaker is not tripped and the outlet is functioning. Test with a multimeter if necessary.

  2. Inspect and replace the burnt-out LED indicator or display. This involves removing the front panel to access the display unit.

  3. Replace the faulty control board. This requires disassembling the unit to reach the control board, disconnecting it, and installing a new one.

Analysis based on 1 community discussions
View Sources

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

  1. Replacing Floor light on Siemens Dishwasher

Community Discussions

LCD light gave out, now a white square light on the floor

Replace the floor light by removing the bottom plate, unplugging the connector, and swapping out the part.

DIY View on Reddit →

Source: Reddit r/appliancerepair

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