ETi 400 High Efficiency Pool and Spa Heater Installation and User’s Guide
Rev. A 9/2016
42
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
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.
Press POOL
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
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 42)
Go to chart HEATER WILL
NOT FIRE -B (Page 43)
Go to DIAGNOSTIC LEDs
(Page 45)
NOTICE:
Installing the
BLUE 120 volt
plug in the control box and
then connecting the heater to a
240 volt line will destroy the trans -
former, control broad, and ignition control module, and will void the
warranty.
If you install the
RED
240 volt plug and then connect the
heater to a 120 volt line, the heater will not operate.
READ THE FOLLOWING CAREFULLY:
1. Check the line voltage to your heater. This heater will operate
on either 120 Volts AC or 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, select the correct plug from the bag in the control box
and plug it in. The
BLUE
plug is for
120 volts,
the
RED
plug
is for
240 volts.
IMPORTANT! READ ME FIRST!
Section 3: Troubleshooting