The circuit board has 2, 25 amp 250V fuses. When both are in the unit has a flo error. when i switch them back and forth the error goes away and the recirc pump works, but there is an HS2 error and that pump doesn't work. I've switched what i though thought was a bad fuse with a working one. same thing this is driving me batty " title="Shocked" />

If im not mistanken HS2 means high speed 2 (2being pump two). and yes its possible that u change the wrong fuse, just change both fuses and you should be okay.