Manufacturer Diagnostics Manual
Verified OEM Technical Manual
Bosch Thermotechnology Diagnostics & Fault Manuals
Gas condensing boilers, hybrid heating, and air-to-water heat pumps.
Equipment Models
Hardware families produced by Bosch Thermotechnology
Indexed Error Codes for Bosch Thermotechnology
Machine-verified error code diagnostic walkthroughs
CODE E56
Series 8 AutoClean Tumble Dryer
High
AutoClean Drain Pump Failure
Error E56 indicates that the condensate/AutoClean pump failed to evacuate water from the lower reservoir within the factory-programmed timeout. The electronic control unit (ECU) aborted the cycle to prevent water spillage and protect the heat pump compressor circuitry.
⏱ 30-45 Mins
Troubleshoot →