dedja wrote:TroyGFC wrote:Mine just cost $200 for the repair guy to change the little 10 amp glass fuse I told him kept blowing, yes he got it working, no he didnt fix job as 3 days later it blew again. So I went up in roof replaced fuse with bigger 15 amp (that was 43degDay) so far so go but there still remains a problem.
Yes, absolutely, you've just compromised circuit protection by installing the wrong fuse.

Hopefully, the electrician used at least 20 amp capacity wiring...
But it is a worry that it is apparently drawing more current than it is supposed to do.
I suppose it is possible the motor is over capacity and turning off and on more often thus shortening fuse life with frequent high start up currents in short bursts.
We once had a cooker that kept blowing the 10 amp switch on its down draft exhaust fan in the middle of the unit.
It turned out it was getting too hot from the adjacent hot plates and the increased resistance that resulted lowered its amperage tolerance.
Replacing it with a 15 amp switch worked.