KJR-17B1热水机线控器是一款循环分体热水机线控器，适用的机型有美的KRSJF-25、KRSJF-35(50)/C、KRSJF-50/C、KRSJF-50/C、KRSJF-72/C、RSJF-28/CRSJF-32/RC、RSJF-35/C。其故障和保护代码含义如下表：