Worcester Bosch fault codes
From the Worcester Bosch manuals on file, range by range.
Worcester Bosch Greenstar 4000 Combi
- 1013Max. combustion point reached (the maximum burner time is reached)
- 1021Cylinder charging or hot water temperature sensor faulty
- 1037Outside temp. sensor faulty - heating backup operation active
- 1065System pressure sensor faulty or not connected
- 1068Outside temp. sensor or lambda probe faulty
- 1073Short-circuit at flow temp. sensor
- 1074No signal from flow temperature sensor
- 1075Heat exchanger temp sensor short circuit
- 1076Heat exchanger temp sensor disconnected
- 2085Internal fault
- 214Fan shut down during safety time
- 224Maximal flue gas thermostat or heat exchanger maximal thermostat has activated (blocking)
Worcester Bosch Greenstar 4000 System
- 1010No communication via EMS BUS connection
- 1013Max. combustion point reached
- 1021Cylinder charging or hot water temperature sensor faulty
- 1022Cylinder temp. sensor faulty or contact problems
- 1037Outside temp. sensor faulty - heating backup operation active
- 1065System pressure sensor faulty or not connected
- 1068Outside temp. sensor or lambda probe faulty
- 1073Short-circuit at flow temp. sensor
- 1074No signal from flow temperature sensor
- 1075Heat exchanger temp sensor short circuit
- 1076Heat exchanger temp sensor disconnected
- 208Post-purge/pump run-on after chimney sweep mode exit