I got 1/4HP one just a few days ago. Easy as a pie to install using supplied fittings using Mag 7 pump. 2-3 hours into operations it stopped working. Thanks to this thread my troubleshooting lasted only 2 sec. Yes, fuse was gone
I changed the fuse and it died even faster this time. Another fuse went in (yes, I bought some spare when I got the chiller
) and 8” table fan was installed to blow air through the chiller. No more fuse problems.
Now, after first day of usage I changed the fittings using 1” coupling and ¾” barb to feed the chiller with ¾ ID tubing. I also no longer use Mag7, just too noisy to my taste. I installed Eheim 1260 instead, it has same flow rating as Mag 7, but way more silent.
No more fan in front of the chiller and no more blown fuses either over last 24 hours. BTW, my tank sits in smaller glass room that gets quite hot when MHs are on - 27deg. C at peak.