In particular, the drain hose of a Hisense AC has been known to detach from the water tank located on top of the unit. In this article, I will discuss how to drain Hisense air conditioner. So let us get started. Guide on How to Drain Hisense Air Conditioner: 1. Prepare the tools: - spanner - screwdriver - bucket (2-3 gallons) 2.. The Hisense air conditioner keeps filling with water because the unit is not draining properly. The most likely cause is a clogged drain line. You can try unclogging the drain line yourself, but if that doesn't work, you'll need to call a repairman.
Uncover the primary drain port. 2. Attach the drain hose to the prima-ry drain hose. Make sure the connec-tor does not have a water leak. 3. Place the other end of drain hose into a drain. Check to see that the hose lies flat and is in the drain. Make sure the hose end that goes to the drain is on a lower level than the hose end that connects.. This installation video applies to the following Canadian models:- 10K BTU PAC- 10K BTU Smart PAC- 12K BTU PAC- 14K BTU PAC (3-in-1 AND heat-cool)Thank you t.