Pentair ETi 400 Installation And User Manual page 44

Section 3: Troubleshooting
44
Troubleshooting Instruction
Section 3: Troubleshooting
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 power to heater for
about 5 seconds, and turn
back on. Make sure tempera-
ture setting is above water
temperature. Wait one minute.
Press POOL button +
Up arrow button together.
Is there a three (3) alpha
numeric fault code displayed on
the LCD?
WARNING
Hazardous voltage. Can shock, burn or kill.
Disconnect power before servicing any components.
ETi 400 High Efficiency Pool and Spa Heater Installation and User's Guide
NO
YES
Press POOL button +
YES Up arrow button together.
Is there a three (3) alpha
numeric fault code displayed
on the LCD?
NO
YES
NO
Does Red SERVICE
HEATER LED come on
NO
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.
switch terminals to remedy a failed safety switch.
Go to chart HEATER WILL
NOT FIRE -A (Page 45)
Go to chart HEATER WILL
NOT FIRE -B (Page 45)
YES
Go to DIAGNOSTIC LEDs
(Page 457
YES
WARNING
Fire and Explosion hazard.
Do not jumper
Rev. C 4/2017