No code
Temperature or sensor issues
Worcester Bosch Greenstar CDi Compact Combi
Cause 212 (Blocking)
Safety or flow temperature rises too fast. Air lock or reduced water content.
Cause 213 (Blocking)
Temperature difference between supply and return exceeding limit. Air lock or reduced water content.
Cause 260 (Blocking)
No temperature rise after burner starts. Sensor disconnected or no water content.
Cause 380 (Blocking)
Inlet DHW temperature higher than the DHW outlet temperature.. The output is blocked until the inlet temperature drops below the output temperature.
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