What the manual says
Manufacturer manualBurn temporarily blocked due to no 20 minute continuous OFF time in last 24 hours.
From this model's manual
Verified against the Worcester Bosch/Worcester Bosch Greenstar Cdi Compact installation & service manual.
DIY fix possible
Turn your heating off completely using your room thermostat or boiler controls.Leave the boiler switched off for at least 20 minutes to let it cool and reset its cycle timer.Turn the heating back on and consider lowering your thermostat settings so the boiler gets natural rest periods.
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Related fault codes
All 100 fault codes on the Greenstar 28CDi Compact ErP
Seeing a different code? Every code this model can display, in one place.
9U212213217260354357358359364365372373374375376380800808810828A1A1-281A3A7A8b7C1C1-264C4C4-273C6C7CECFD1D1-240D1-241D1-286D3D4D4-271E2E2-222E2-223E3E5E5-218E5-332E9E9-219E9-220E9-221E9-224E9-276E9-277E9-285EAEA-227EA-229EA-234EA-261ECEDEEEFEF-349F0F0-237F0-239F0-242F0-256F0-258F0-259F0-262F0-263F0-267F0-272F0-278F0-279F0-280F0-290F0-338F7F7-228F7-328FAFA-306FA-364Fb-365FDFD-231H5P1t1t2t3t4t6