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Appliance Fix Guide

Bosch Dishwasher error code

Bosch Dishwasher Error GLASS-40-SYMBOL-2

Represents a gentle cleaning cycle with lower temperatures (around 40°C) and an extended drying

Represents a gentle cleaning cycle with lower temperatures (around 40°C) and an extended drying period, designed for delicate glassware.

EasyStart with 5-15 minutes of safe checks
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Bosch dishwasher repair guide for error GLASS-40-SYMBOL-2
Error codeGLASS-40-SYMBOL-2Dishwasher

Start here before buying a part or taking the appliance apart.

  1. 1
    Understand that this symbol represents a gentle wash

    Understand that this symbol represents a gentle wash cycle designed for delicate glassware, not an error.

  2. 2
    This cycle uses a lower water temperature (40°C)

    This cycle uses a lower water temperature (40°C) and reduced water pressure to protect fragile items.

  3. 3
    To use it, carefully load your delicate glasses

    To use it, carefully load your delicate glasses and other sensitive items, ensuring they are secure.

A quick explanation

What does GLASS-40-SYMBOL-2 mean?

Represents a gentle cleaning cycle with lower temperatures (around 40°C) and an extended drying period, designed for delicate glassware.

The answer you came for

How to fix Bosch dishwasher error GLASS-40-SYMBOL-2

Start with the safest checks and work from simple to technical.

  1. 1

    Understand that this symbol represents a gentle wash

    Understand that this symbol represents a gentle wash cycle designed for delicate glassware, not an error.

  2. 2

    This cycle uses a lower water temperature (40°C)

    This cycle uses a lower water temperature (40°C) and reduced water pressure to protect fragile items.

  3. 3

    To use it, carefully load your delicate glasses

    To use it, carefully load your delicate glasses and other sensitive items, ensuring they are secure.

  4. 4

    Add a detergent suitable for delicate washes and

    Add a detergent suitable for delicate washes and confirm the error stays cleared during a full test cycle.

  5. 5

    Press the 'Glass 40°' button on the control

    Press the 'Glass 40°' button on the control panel and confirm the error stays cleared during a full test cycle.

  6. 6

    Press 'Start' to begin the gentle cleaning cycle

    Press 'Start' to begin the gentle cleaning cycle and confirm the error stays cleared during a full test cycle.

  7. 7

    Turn the appliance off, wait about 2 minutes,

    Turn the appliance off, wait about 2 minutes, then turn it back on.

Read the additional checks from the current guide

How to Fix GLASS 40° SYMBOL Error (Step-by-Step) Understand that this symbol represents a gentle wash cycle designed for delicate glassware, not an error.This cycle uses a lower water temperature (40°C) and reduced water pressure to protect fragile items.To use it, carefully load your delicate glasses and other sensitive items, ensuring they are secure.Add a detergent suitable for delicate washes and confirm the error stays cleared during a full test cycle.Press the 'Glass 40°' button on the control panel and confirm the error stays cleared during a full test cycle.Press 'Start' to begin the gentle cleaning cycle and confirm the error stays cleared during a full test cycle.Turn the appliance off, wait about 2 minutes, then turn it back on.

What to Check Next on This Bosch Dishwasher Bosch Dishwasher Error GLASS 40° SYMBOL: Use the code, light, or symbol as the starting clue, then confirm what the dishwasher actually does before ordering parts. 1. Turn power off before opening panels, reaching into the sump, touching wiring, or checking the pump, heater, valve, sensor, latch, or control area. 2. Confirm whether the display is a normal cycle/status symbol or a recurring fault that interrupts filling, washing, draining, drying, locking, or control response. 3. Start with the wash path: filter, sump debris, spray-arm movement, circulation-pump sound, wiring, and control output. 4. Clean the filter and sump, check spray-arm movement, verify water supply, inspect the drain hose and sink connection, and correct any visible blockage before replacing parts. 5. Run a short test cycle and watch where it fails; the exact stage matters more than the displayed word or symbol by itself. 6. Replace a part only after the same symptom repeats and the model-specific checks point to that part category. Match any replacement to the complete Bosch model number on the door tag. If the issue returns after these checks, match replacement parts to the complete Bosch dishwasher model number from the door tag. The same display clue can point to different components depending on the exact model and when the failure appears. Recommended Parts to Check No exact official OEM part number is listed here because the correct Bosch dishwasher part can vary by complete model number. These are targeted part-category searches, not universal fit claims. Bosch dishwasher water inlet valve Common replacement category: Water inlet valve Fit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying. Confidence: MediumThis category can be relevant for fill and water-supply faults after the tap, hose, and inlet screen are checked. Search Amazon for Bosch dishwasher water inlet valve Bosch dishwasher drain pump Common replacement category: Drain pump Fit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying. Confidence: MediumThis category can be relevant for drain and standing-water symptoms after the filter, sump, and hose are checked. Search Amazon for Bosch dishwasher drain pump Bosch dishwasher circulation pump Common replacement category: Circulation pump / wash motor Fit note: Exact OEM part number varies by full Bosch dishwasher model number. Confirm compatibility before buying. Confidence: MediumThis category can be relevant for wash, spray-arm, and circulation symptoms after filters and spray arms are checked. Search Amazon for Bosch dishwasher circulation pump Before ordering: match the part to the complete Bosch dishwasher model number on the appliance tag.

If the code comes back

Do not keep replacing parts based only on the code. Repeat the safe checks above. If the fault remains, stop and arrange qualified service rather than ordering from the code alone.

Recommended part

Recommended part for this error code

No replacement part recommended for this code

The researched guidance for Bosch Dishwasher error GLASS-40-SYMBOL-2 points to user-action and diagnostic steps above rather than a mapped replacement part. We will not invent a part or send you to an unrelated product.

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Use the age and total repair estimate to get a simple comparison. This is guidance, not a guarantee.

Safety first

Disconnect power before opening panels or touching internal parts.

When to stop
  • Stop if you see burned wiring, melted connectors, water near electrical parts, or a gas smell.
  • Do not perform live-voltage testing unless you are trained and equipped for it.
  • Use the exact model manual or service information before replacing electronic controls.

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