2980
Locking fault: To unlock Hold up and down arrow keys pressed simultaneously for 3 s. For more information see operating instr. (Boiler locked. Contact a qualified heating engineer)
Worcester Bosch Greenstar 4000 Combi
Remedy
Boiler is in the super lock-out condition.
▶ Super lock-out (2980) occurs when a potential safety-critical condition is detected and 5 locking faults are reset within a 15-minute period. If the fault is not remedied and the complete system is not checked, there is a risk of personal injury:
This code also applies to: