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Heating  Heating

Brand

Slant-fin Slant-fin List all brands

Type:

VSL-160-C view VSL-160-C List all types

Error code:

L21
List all errors


Error code: L21

Cause of error code L21

Boiler in blocking state for more than 20 hours

Solution for error code L21

Press RESET button and check the blocking error “E” 


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