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Pentair ETi 400 - Page 44

Pentair ETi 400
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ETi 400 High Efficiency Pool and Spa Heater Installation and User’s Guide Rev. C 4/2017
44
Troubleshooting Instruction
Section 3: Troubleshooting
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
Press POOL button +
Up arrow button together.
Is there a three (3) alpha
numeric fault code displayed
on the LCD?
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.
Start here for directions to specific Troubleshooting Chart
Fire and Explosion hazard.
Press POOL button +
Up arrow button together.
Is there a three (3) alpha
numeric fault code displayed on
the LCD?
Go to chart HEATER WILL
NOT FIRE -A (Page 45)
Go to chart HEATER WILL
NOT FIRE -B (Page 45)
Go to DIAGNOSTIC LEDs
(Page 457
Section 3: Troubleshooting

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