Rev. D 27-06-11
P/N 474131
35
Section 5. Troubleshooting
Troubleshooting Instruction
Hazardous voltage. Can shock, burn or kill.
Disconnect power before servicing any components.
Do not jumper
switch terminals to remedy a failed safety switch.
WARNING
WARNING
Initial Troubleshooting
Only qualified, trained service technicians with appropriate test equipment should service the heater. Remember
that all parts of the system affect heater operation. Before starting this troubleshooting procedure, make sure that
the pump is running correctly, that there are no blockages in the system, that the valves are correctly set and that
the time clock is correctly set and is running.
Go to chart “HEATER WILL
NOT FIRE - A”
(Page 36)
Go to chart “HEATER WILL
NOT FIRE - B”
(Page 37)
Go to specific safety switch
troubleshooting chart
(Pages 38 and 39)
Go to chart ‘HEATER WILL
NOT FIRE -C”
(Page 38)
Are any red diagnos-
tic LED’s on back of
board (AGS, AFS,
SFS, HLS, PS or
THERMISTOR) “on”
NO
NO
NO
NO
NO
YES
YES
YES
NO
YES
YES
Does red “SERVICE
HEATER” LED come
“on”
Verify that water temperature setting is
above water temperature reading. If it is,
and heater either will not fire or no red
LED’s come “on”, replace Control Board.
YES
Is green “POOL” or “SPA”
LED “on”?
Is red “SERVICE SYSTEM”
LED “on”?
Is red “SERVICE HEATER”
LED “on”?
Turn off power to heater for
about 5 seconds, and turn
back on. Make sure tempera-
ture setting is above water
temperature. Wait one minute.
Do any diagnostic LED’s on
back of board (AGS, AFS,
SFS, HLS, PS, or
THERMISTOR) come “on”
and stay on?
NOTICE:
Any or all of the diag-
nostic LED’s may come “on”
momentarily when you turn on
the power to the heater.
IMPORTANT! READ ME FIRST!
Start here for directions to specific Troubleshooting Chart
Fire and Explosion hazard.
READ THE FOLLOWING CAREFULLY:
1. Check the line voltage to your heater. This heater operartes
on 240 Volts AC.
2. Remove the covers and check the 12-pin plug in the back of
the control box. The plug must match the voltage in the heater circuit.
3. If the 12-pin plug is not plugged into the back of the control box,
plug in the
RED
240 volt plug.
