Bosch Washer Er:06 Points to a Temperature Sensor Reading as a Short

What Er:06 means

Er:06 is the opposite of Er:05. Here the temperature sensor circuit looks like a dead short, so the control reads an impossibly high temperature and refuses to heat the water. Bosch lists a damaged NTC sensor or a short in its cable as causes, with the remedies of repairing the cable short or replacing the sensor. The result is a clean refusal rather than erratic heating.

Common causes of Er:06

NTC sensor shorted internally
Cable shorted against the tub or the chassis
Corrosion bridging the sensor terminals

✓ One safe check you can try

1. There is no safe home measurement for this error. 2. Instead, run a warm program and watch whether the washer heats at all. 3. Write down whether it never heats or heats unevenly. A shorted sensor makes the machine refuse heat completely, and that detail helps us narrow the cause before we arrive.

! Why to stop there

Measuring across the sensor terminals without knowing the circuit can damage the control board.
Cables near the tub can be rubbed through by vibration, and moving them blindly can make the short worse.
Ordering a sensor on a hunch is a wasted purchase if the short is in the harness.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

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Other Washer codes

dr:15Bosch Washer dr:15 Gives an Early Warning From the Power Limiter dr:19Bosch Washer dr:19 Shows That the Motor Phases Don't Match dr:20Bosch Washer dr:20 Signals a Shorted Inverter Output Stage dr:21Sustained High Voltage and Bosch Washer dr:21 dr:22Bosch Washer dr:22 Reports Failure of the Inverter's Own Temperature Sensor dr:01The dr:01 Code on a Bosch Washer: Inverter Power Switch Shorted dr:02Bosch Washer dr:02 Indicates an Inverter Power Switch That Is Open dr:06Bosch Washer dr:06 and the Inverter's Temperature Protection

Er:06Er:06 questions

Does a shorted sensor mean overheating?

No. The control thinks the water is already hot, so it never switches the heater on. The opposite danger is not present, which is why this code is rated medium.

Can I wash cold until the repair?

In many cases yes, because cold programs need no heat. If the machine stops anyway, leave it off. We would not run it repeatedly while the code is active.

Why would corrosion cause this?

Moisture on the sensor terminals can bridge them electrically, which the control reads as a short. Cleaning sometimes helps, but a corroded connector usually needs replacing.