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.
Start here for directions to specific Troubleshooting Chart
Is green “POOL” or “SPA” LED “on”?
YES
Is red “SERVICE SYSTEM” LED “on”?
NO
Is red “SERVICE HEATER” LED “on”?
NO
Turn off 120 VAC power to heater for about 5 seconds, and turn back on. Make sure temperature setting is above water temperature. Wait one minute.
NO
YES
| YES |
| Are any red diagnos- | YES | |
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| tic LED’s on back of | |||
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| SFS, HLS, PS or |
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| THERMISTOR) “on” |
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YES
Go to chart “HEATER WILL NOT FIRE - A”
(Page 24)
Go to chart “HEATER WILL NOT FIRE - B”
(Page 25)
Go to specific safety switch troubleshooting chart (Pages 28 and 29)
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.
NO |
| Does red “SERVICE | YES | |
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| HEATER” LED come |
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| NO |
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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.
Go to chart ‘HEATER WILL NOT FIRE
(Page 26)
Hazardous voltage. Can shock, burn or kill. Disconnect power before servicing any components.
Fire and Explosion hazard. Do not jumper switch terminals to remedy a failed safety switch.
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