Worcester Bosch · Boilers and HVAC
Worcester Bosch Greenstar 2000 gas boiler
Product information, applicable models, official documentation and 109 indexed error-code explanations for Greenstar 2000 gas boiler.
109indexed codes
1named models or series
1official links
About Worcester Bosch Greenstar 2000 gas boiler
Worcester Bosch Greenstar 2000 gas boiler is indexed in the Boilers and HVAC directory for United Kingdom. This page brings the available product context, model references, documentation and diagnostic codes together in one place.
The codes below apply only where the linked code page lists this product or model. Confirm the complete model identifier because manufacturers may reuse the same characters across different ranges, generations and control systems.
An error code describes a condition detected by the product; it does not prove that a named component has failed. Follow the exact manual, avoid repeated resets and use an appropriately qualified technician whenever checks require internal access.
Models and series
Greenstar 2000
Start here
Common Greenstar 2000 gas boiler codes
Frequently useful high-priority and recently documented entries.
2981Worcester Bosch · Greenstar 2000 gas boiler · United KingdomBoiler locked after repeated resetsWorcester Bosch documents 2981 for the Greenstar 2000 gas boiler as “Boiler locked after repeated resets”. This is…2980Worcester Bosch · Greenstar 2000 gas boiler · United KingdomSuper lockout after repeated resetsWorcester Bosch documents 2980 for the Greenstar 2000 gas boiler as “Super lockout after repeated resets”. This is…2974Worcester Bosch · Greenstar 2000 gas boiler · United KingdomInternal faultWorcester Bosch documents 2974 for the Greenstar 2000 gas boiler as “Internal fault”. This is the quick answer…2973Worcester Bosch · Greenstar 2000 gas boiler · United KingdomBoiler electronics or controller system faultWorcester Bosch documents 2973 for the Greenstar 2000 gas boiler as “Boiler electronics or controller system fault”. This…2972Worcester Bosch · Greenstar 2000 gas boiler · United KingdomMains voltage too lowWorcester Bosch documents 2972 for the Greenstar 2000 gas boiler as “Mains voltage too low”. This is the…2966Worcester Bosch · Greenstar 2000 gas boiler · United KingdomHeat-exchanger flow temperature rising too rapidlyWorcester Bosch documents 2966 for the Greenstar 2000 gas boiler as “Heat-exchanger flow temperature rising too rapidly”. This…2965Worcester Bosch · Greenstar 2000 gas boiler · United KingdomFlow temperature too highWorcester Bosch documents 2965 for the Greenstar 2000 gas boiler as “Flow temperature too high”. This is the…2964Worcester Bosch · Greenstar 2000 gas boiler · United KingdomHeat-exchanger flow rate too lowWorcester Bosch documents 2964 for the Greenstar 2000 gas boiler as “Heat-exchanger flow rate too low”. This is…
Complete directory
All Greenstar 2000 gas boiler error codes
Showing 91–109 of 109
2980Worcester Bosch · Greenstar 2000 gas boiler · United KingdomSuper lockout after repeated resetsWorcester Bosch documents 2980 for the Greenstar 2000 gas boiler as “Super lockout after repeated resets”. This is…2981Worcester Bosch · Greenstar 2000 gas boiler · United KingdomBoiler locked after repeated resetsWorcester Bosch documents 2981 for the Greenstar 2000 gas boiler as “Boiler locked after repeated resets”. This is…305Worcester Bosch · Greenstar 2000 gas boiler · United KingdomHeat exchanger in hot-water anti-cycle modeWorcester Bosch documents 305 for the Greenstar 2000 gas boiler as “Heat exchanger in hot-water anti-cycle mode”. This…306Worcester Bosch · Greenstar 2000 gas boiler · United KingdomFlame signal after fuel supply closedWorcester Bosch documents 306 for the Greenstar 2000 gas boiler as “Flame signal after fuel supply closed”. This…341Worcester Bosch · Greenstar 2000 gas boiler · United KingdomHeat-exchanger temperature rise too rapidWorcester Bosch documents 341 for the Greenstar 2000 gas boiler as “Heat-exchanger temperature rise too rapid”. This is…347Worcester Bosch · Greenstar 2000 gas boiler · United KingdomReturn temperature exceeds flow temperatureWorcester Bosch documents 347 for the Greenstar 2000 gas boiler as “Return temperature exceeds flow temperature”. This is…351Worcester Bosch · Greenstar 2000 gas boiler · United KingdomFlow temperature sensor interruptedWorcester Bosch documents 351 for the Greenstar 2000 gas boiler as “Flow temperature sensor interrupted”. This is the…353Worcester Bosch · Greenstar 2000 gas boiler · United KingdomNon-volatile lockout testWorcester Bosch documents 353 for the Greenstar 2000 gas boiler as “Non-volatile lockout test”. This is the quick…357Worcester Bosch · Greenstar 2000 gas boiler · United KingdomVentilation programme activeWorcester Bosch documents 357 for the Greenstar 2000 gas boiler as “Ventilation programme active”. This is the quick…358Worcester Bosch · Greenstar 2000 gas boiler · United KingdomAnti-seizing function activeWorcester Bosch documents 358 for the Greenstar 2000 gas boiler as “Anti-seizing function active”. This is the quick…360Worcester Bosch · Greenstar 2000 gas boiler · United KingdomIncompatible code plugWorcester Bosch documents 360 for the Greenstar 2000 gas boiler as “Incompatible code plug”. This is the quick…362Worcester Bosch · Greenstar 2000 gas boiler · United KingdomBoiler identification module or electronics faultWorcester Bosch documents 362 for the Greenstar 2000 gas boiler as “Boiler identification module or electronics fault”. This…363Worcester Bosch · Greenstar 2000 gas boiler · United KingdomIonisation current did not drop during testWorcester Bosch documents 363 for the Greenstar 2000 gas boiler as “Ionisation current did not drop during test”.…364Worcester Bosch · Greenstar 2000 gas boiler · United KingdomGas-valve solenoid EV2 leakingWorcester Bosch documents 364 for the Greenstar 2000 gas boiler as “Gas-valve solenoid EV2 leaking”. This is the…365Worcester Bosch · Greenstar 2000 gas boiler · United KingdomGas-valve solenoid EV1 leakingWorcester Bosch documents 365 for the Greenstar 2000 gas boiler as “Gas-valve solenoid EV1 leaking”. This is the…522Worcester Bosch · Greenstar 2000 gas boiler · United KingdomNTC drift test runningWorcester Bosch documents 522 for the Greenstar 2000 gas boiler as “NTC drift test running”. This is the…568Worcester Bosch · Greenstar 2000 gas boiler · United KingdomWater-pressure sensor disconnected or faultyWorcester Bosch documents 568 for the Greenstar 2000 gas boiler as “Water-pressure sensor disconnected or faulty”. This is…578Worcester Bosch · Greenstar 2000 gas boiler · United KingdomNTC temperature sensor damagedWorcester Bosch documents 578 for the Greenstar 2000 gas boiler as “NTC temperature sensor damaged”. This is the…604Worcester Bosch · Greenstar 2000 gas boiler · United KingdomBurner control-unit system faultWorcester Bosch documents 604 for the Greenstar 2000 gas boiler as “Burner control-unit system fault”. This is the…