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Greenstar Heatslave II
Worcester Bosch Greenstar Heatslave II
E9
Temperature errors and safety sensor issues
E5
Flow temperature errors
E2
Flow sensor errors
F0
Software and sensor errors
No code
Temperature and inlet issues
D4
Temperature sensor difference error
9A
HCM variant error
A7
DHW sensor defect
A0
Thermal store sensor defect
9F
Burner lockout
H29
Weather compensation error
H27
DCW sensor defect
Source:
Manufacturer manual (PDF)
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