A:补水 A2:风机不转 A3:虚火开关短线 A4:过热 A5:虚火开关断路 A6:点火不良 A7:控制继电器短路 A8:火焰信号有误 A9:防止冻裂 Aa:防止沸腾 Ab:供暖NTC故障 Ac:热水NTC故障 Ad:燃气警报 Ae:逆压 |
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