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Heating  Heating

Brand

Triangle-tube Triangle-tube List all brands

Type:

Keystone KW 199 view Keystone KW 199 List all types

Error code:

81
List all errors


Error code: 81

Cause of error code 81

Delta T inlet/outlet limit
High limit reached

Solution for error code 81

Check pump, time delay, valves closed, etc. and correct overtemp


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