E32
Bosch Dishwasher
Severity: ModerateWhat Does This Error Mean?
The E32 error on a Bosch dishwasher means the pressure sensor is giving a reading that does not match what the control board expects. The pressure sensor monitors how much water is inside the tub. When the reading is inconsistent or out of range, the dishwasher stops and shows E32.
Affected Models
- SHPM88Z75N
- SHPM65Z55N
- SHEM63W55N
- SHPK7TL5UC
- Most Bosch 300, 500, and 800 Series dishwashers
Common Causes
- The pressure sensor has drifted out of calibration and is giving incorrect water level readings
- Limescale or mineral deposit buildup is clogging the pressure sensor port
- The hose connecting the pressure sensor to the sump has a kink or air leak
- The pressure sensor itself has failed electronically
- The control board is not correctly interpreting the sensor signal
How to Fix It
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Cancel the current program by pressing and holding the Start button for 3 seconds.
Allow the dishwasher to finish draining before proceeding.
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Run a descaling cycle using a commercial dishwasher descaler or citric acid.
Place the descaling agent in the bottom of the empty tub and run a hot program. Scale buildup on the pressure sensor is a leading cause of E32.
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Disconnect the power to the dishwasher by unplugging it or turning off its circuit breaker.
Wait 10 minutes for the board to fully reset.
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Restore power and run a short quick-wash program to see if E32 clears.
Watch the cycle progress — if it fills and drains normally without stopping, the error is resolved.
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If E32 returns during the fill or wash phase, schedule a technician to inspect the pressure sensor.
The sensor, its connecting hose, or the main board will need professional testing.
When to Call a Professional
If descaling the machine and resetting it does not clear E32, call a Bosch-certified technician. The pressure sensor or its connecting hose will need inspection. Pressure sensor replacement is typically a straightforward repair but requires accessing the sump area. Expect repair costs of $120–$220 including parts and labor.
Frequently Asked Questions
What does the pressure sensor do in a Bosch dishwasher?
The pressure sensor monitors the water level inside the tub. As the dishwasher fills, water pressure builds up in a small chamber connected to the sensor. The sensor converts that pressure into an electrical signal so the control board knows exactly how much water is present. If the signal is wrong or absent, the board cannot manage the fill cycle safely.
Will the E32 error damage my Bosch dishwasher if ignored?
Not immediately — the dishwasher stops the cycle to prevent overfilling or damage. However, a misfiring pressure sensor can eventually cause the board to allow too much or too little water in. Too much water leads to flooding; too little leads to poor washing results. Get it checked promptly.
Can hard water cause the E32 error on a Bosch dishwasher?
Yes — hard water deposits (limescale) are one of the most common causes of E32. Scale builds up inside the small pressure port and restricts the sensor's ability to read accurately. Using Bosch's built-in water softener system (keeping the salt reservoir filled) helps prevent this. In hard water areas, run a descaling cycle every 2–3 months.