查室外机运行压力为0.15MPa,室外风机风力很小,外机高压管接口处结霜严重。初步判断严重缺氟并有脏堵或油堵现象。先解决漏氟问题,查室外机高低压管接口处无漏油现象,室内机高低压管接口处也无漏油迹象。拆开室外机发现冷凝器与高压管焊接处有大量油迹,并且冷凝器翅片布满灰尘与飞絮,用毛刷仔细清除干净冷凝器。收氟后卸下室外机,经过检漏、补焊、抽空、加氟程序后安装好室外机,通电试机,室外机风力恢复正常,制冷效果正常。 |
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