|Other Usefull Pages
[ BBS FAQ ] [ Error Codes ] [ Chlorine Info ] [ Bromine Info ] [ TDS ] [ pH Explained ] [ Electric Heater Guide ] [ Voltage Testing ] [ Pump Air Lock ] [ Owners Manuals ]
: I have a single pump Freeflow 120v spa. Everything works fine until I
: switch the tub to high speed. Then the GFCI trips immediatly. Not the
: breaker itself, but the gfci function. Since it runs fine on low
: speed with the heater running and the heater shuts off when switching
: to high speed since it is a 120V...does that mean it is definitly the
: motor that is the problem? I have gone from low to high with the
: heater off completly and same issue occurs. I am an experienced
: residential electrician, but I do not have much knowledge with
: electric pumps and spas.
Disconnect and isolate the motor conductors. Use a megger to ohm across from ground to each current carrying conductor. Any reading on the megger indicates the problem is in the motor, either a pump leak or motor winding issues.
PLEASE NOTE: We are Roberts Hot Tubs Inc. (manufacturers of traditional wooden hot tubs)! If you found this webpage through a search engine while searching for a different brand of spa, we are not them! We simply appeared in your search due to that name being talked about on this particular web page. The phone number below will reach Roberts Hot Tubs, not the manufacturer of the brand of spa you're searching for. This is a public forum and you're more than welcome to post a question asking for contact or other information for a particular brand of spa. Almost certainly someone will be able to assist you.