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Heating  Heating

Brand

Triangle-tube Triangle-tube List all brands

Type:

Keystone KS 500 view Keystone KS 500 List all types

Error code:

91
List all errors


Error code: 91

Cause of error code 91

Inlet sensor fault
Faulty sensor or wiring

Solution for error code 91

 Check wiring / replace sensor; condition can be caused by short


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