美国采购需求：热水热泵、热泵热水器、家用热泵、泳池加热器、太阳能泳池加热器、电动泳池加热器

I'm reaching out regarding an ongoing issue with one of your pool heat pumps. Despite the unit running and the display functioning properly, it isn't heating the pool water at all. This has become quite concerning, as I have previously messaged you twice about this issue but haven't received any feedback yet. Could you please provide assistance or guidance on how to resolve this problem? Your prompt response would be greatly appreciated, as this situation is impacting my operations. Looking forward to hearing from you soon!