Bestway Lazy Spa Pump Heater

BESTWAY LAZY SPA HEATER PUMPPURCHASED 3 MONTHS AGO JULYWAS WORKING PERFECTLY THEN ERROR WAS SHOWING 6CFAS IT WAS STILL GURANTEED RANG BESTWAY TOLD THEM ABOUT THE PROBLEM THEY SAID OUR HOME HAD A PROBLEM WITH GROUNDING SYSTEM BESTWAY CHECKED OUR ELECTRICS AS THEY SENT US A TESTER THROUGH THE POST. ALL ELECTRICS WAS WORKING FINE SO BESTWAY HAD TO REPLACE THE HEATER AS IT WAS STILL UNDER GUARANTEE THEY CAN ONLY SEND OUT A REPLACEMENT WHEN THE WIRE WAS CUT AND THEN I HAD TO SEND PICS OF THE CUT WIRE GOT A REPLACEMENT SO SELLING THE HEATER AS SPARES OR REPAIR WILL SEND THE WIRE AND PLUG WITH THE HEATERTHE HEATER IS ONLY 3 MONTHS OLDCOLLECTION WELCOME OR POSTAGE