What the manual says
Manufacturer manualLocking 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)
DIY fix possible
Locate the display screen on your Worcester Bosch boiler.Press and hold both the up and down arrow keys simultaneously for 3 seconds.Check if the boiler unlocks and resumes normal operation. If the fault persists, contact a qualified engineer.
Avoid the next call-out bill
A cover plan would handle faults like 2980: no call-out fees, no surprise bills.
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All 103 fault codes on the Greenstar 8000+ GR8701iW 30 S
Seeing a different code? Every code this model can display, in one place.