the DC motor warranty is 5 years, why not send back to them and have it replace?

ya sure i got the warranty card with me now. I am planing to call them. my dc pump die on me yesterday.
heater are working but not the pump . i buy end of august last year

Yes my one is S18i rain shower. pump are quite strong and its quiet. before this unit i use AC pump. very noisy.

oh.... ya I call them and file warranty claim already. They are sending technician this Friday. lucky the problem crop up now, if not need to play extra service charge. Thanks for the info!!

today the Alpha technician come and replace the DC Pump. Free of charge. all over in 15min. very good service indeed
Just call yesterday today come to repair.

Actually AC pump concept are using motor from electric drill (with carbon). If you ask me, i would say AC Pump motor will last longer. Only things is that you need to replace the carbon brush after maybe 5 years using it. But the AC pump will get noisier. It was like your CD player that have volume control. Each year pass, the sound get noisier 1 st year level 1 and 5th year level 5 and its goes on until when you take shower, people stand outside your room will know ur showering. It will work fine but the noise........