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 1–30 of 109
1010Worcester Bosch · Greenstar 2000 gas boiler · United KingdomNo BUS communicationWorcester Bosch documents 1010 for the Greenstar 2000 gas boiler as “No BUS communication”. This is the quick…1013Worcester Bosch · Greenstar 2000 gas boiler · United KingdomMaximum combustion point reachedWorcester Bosch documents 1013 for the Greenstar 2000 gas boiler as “Maximum combustion point reached”. This is the…1018Worcester Bosch · Greenstar 2000 gas boiler · United KingdomMaintenance interval expiredWorcester Bosch documents 1018 for the Greenstar 2000 gas boiler as “Maintenance interval expired”. This is the quick…1021Worcester Bosch · Greenstar 2000 gas boiler · United KingdomCylinder or hot-water temperature sensor faultWorcester Bosch documents 1021 for the Greenstar 2000 gas boiler as “Cylinder or hot-water temperature sensor fault”. This…1023Worcester Bosch · Greenstar 2000 gas boiler · United KingdomMaximum run time reachedWorcester Bosch documents 1023 for the Greenstar 2000 gas boiler as “Maximum run time reached”. This is the…1025Worcester Bosch · Greenstar 2000 gas boiler · United KingdomReturn temperature sensor faultWorcester Bosch documents 1025 for the Greenstar 2000 gas boiler as “Return temperature sensor fault”. This is the…1068Worcester Bosch · Greenstar 2000 gas boiler · United KingdomOutside temperature sensor or lambda probe faultWorcester Bosch documents 1068 for the Greenstar 2000 gas boiler as “Outside temperature sensor or lambda probe fault”.…1073Worcester Bosch · Greenstar 2000 gas boiler · United KingdomFlow temperature sensor short circuitWorcester Bosch documents 1073 for the Greenstar 2000 gas boiler as “Flow temperature sensor short circuit”. This is…1074Worcester Bosch · Greenstar 2000 gas boiler · United KingdomNo signal from flow temperature sensorWorcester Bosch documents 1074 for the Greenstar 2000 gas boiler as “No signal from flow temperature sensor”. This…200Worcester Bosch · Greenstar 2000 gas boiler · United KingdomBoiler in heating modeWorcester Bosch documents 200 for the Greenstar 2000 gas boiler as “Boiler in heating mode”. This is the…201Worcester Bosch · Greenstar 2000 gas boiler · United KingdomBoiler in hot water modeWorcester Bosch documents 201 for the Greenstar 2000 gas boiler as “Boiler in hot water mode”. This is…202Worcester Bosch · Greenstar 2000 gas boiler · United KingdomBoiler in anti-cycle modeWorcester Bosch documents 202 for the Greenstar 2000 gas boiler as “Boiler in anti-cycle mode”. This is the…203Worcester Bosch · Greenstar 2000 gas boiler · United KingdomBoiler in standby with no heat demandWorcester Bosch documents 203 for the Greenstar 2000 gas boiler as “Boiler in standby with no heat demand”.…204Worcester Bosch · Greenstar 2000 gas boiler · United KingdomPrimary water temperature above set valueWorcester Bosch documents 204 for the Greenstar 2000 gas boiler as “Primary water temperature above set value”. This…208Worcester Bosch · Greenstar 2000 gas boiler · United KingdomChimney sweep demandWorcester Bosch documents 208 for the Greenstar 2000 gas boiler as “Chimney sweep demand”. This is the quick…2085Worcester Bosch · Greenstar 2000 gas boiler · United KingdomInternal faultWorcester Bosch documents 2085 for the Greenstar 2000 gas boiler as “Internal fault”. This is the quick answer…213Worcester Bosch · Greenstar 2000 gas boiler · United KingdomTemp difference between supply and return exceeding limitWorcester Bosch documents 213 for the Greenstar 2000 gas boiler as “Temp difference between supply and return exceeding…214Worcester Bosch · Greenstar 2000 gas boiler · United KingdomFan shut down during safety timeWorcester Bosch documents 214 for the Greenstar 2000 gas boiler as “Fan shut down during safety time”. This…219Worcester Bosch · Greenstar 2000 gas boiler · United KingdomSupply or return water too hotWorcester Bosch documents 219 for the Greenstar 2000 gas boiler as “Supply or return water too hot”. This…2207Worcester Bosch · Greenstar 2000 gas boiler · United KingdomLow or missing PWM signal from circulation pumpWorcester Bosch documents 2207 for the Greenstar 2000 gas boiler as “Low or missing PWM signal from circulation…222Worcester Bosch · Greenstar 2000 gas boiler · United KingdomInterruption of the NTC cablingWorcester Bosch documents 222 for the Greenstar 2000 gas boiler as “Interruption of the NTC cabling”. This is…223Worcester Bosch · Greenstar 2000 gas boiler · United KingdomFlow temperature sensor wiring interruptedWorcester Bosch documents 223 for the Greenstar 2000 gas boiler as “Flow temperature sensor wiring interrupted”. This is…224Worcester Bosch · Greenstar 2000 gas boiler · United KingdomSafety temp. limiter has trippedWorcester Bosch documents 224 for the Greenstar 2000 gas boiler as “Safety temp. limiter has tripped”. This is…227Worcester Bosch · Greenstar 2000 gas boiler · United KingdomNo flame signal after ignitionWorcester Bosch documents 227 for the Greenstar 2000 gas boiler as “No flame signal after ignition”. This is…228Worcester Bosch · Greenstar 2000 gas boiler · United KingdomFlame signal detected without a flameWorcester Bosch documents 228 for the Greenstar 2000 gas boiler as “Flame signal detected without a flame”. This…229Worcester Bosch · Greenstar 2000 gas boiler · United KingdomFlame failed during burner operationWorcester Bosch documents 229 for the Greenstar 2000 gas boiler as “Flame failed during burner operation”. This is…232Worcester Bosch · Greenstar 2000 gas boiler · United KingdomBoiler locked by external switching contactWorcester Bosch documents 232 for the Greenstar 2000 gas boiler as “Boiler locked by external switching contact”. This…233Worcester Bosch · Greenstar 2000 gas boiler · United KingdomBoiler identification module or electronics faultWorcester Bosch documents 233 for the Greenstar 2000 gas boiler as “Boiler identification module or electronics fault”. This…234Worcester Bosch · Greenstar 2000 gas boiler · United KingdomGas valve electrical faultWorcester Bosch documents 234 for the Greenstar 2000 gas boiler as “Gas valve electrical fault”. This is the…235Worcester Bosch · Greenstar 2000 gas boiler · United KingdomConflicting boiler electronics and identification versionsWorcester Bosch documents 235 for the Greenstar 2000 gas boiler as “Conflicting boiler electronics and identification versions”. This…