WL500
Manual
Page 79 Revision 4‐10‐2019
Unplug “Line” socket (red connector) with
Blue and Brown wires from main power switch to PCB.
3.1.
Reset the GFCI and cycle power back ON to
check the unit with PCB isolated.
3.2.
GFCI Does Not Fault? Stray current isolated to Power Switch.
Check and Replace Main Power Switch
3.3.
GFCI Still Faults, go to step 4.
4.
Isolate (disconnect) the UV Ballast
Unplug “BT” connector with two white wires from main PCB.
4.1.
Reset the GFCI and cycle power back ON to
check the unit with UV system isolated.
4.2.
GFCI Does Not Fault: Stray current isolated to UV.
Check and Replace faulty UV component(s)
UV Ballast
UV Lamp
UV Harness
4.3.
GFCI Still Faults…go to step 5.
5.
Turn On Heater/Compressor Power (Green) Switch to (I) Position.
Switch should light to indicate power on.
5.1.
GFCI Faults? Go to Step 6
5.2.
GFCI Does Not Fault. Indicates problem is resolved. Ensure Full
Machine Function including Compressor and heater are
operational before completing work.
6.
Isolate (disconnect) the Heater Circuit
Unplug HEATER white connector with two red
wires from PCB.
6.1.
Reset the GFCI and cycle power back on to
check the unit with heater circuit isolated.
GREEN RED
