Heater Will Not Fire A - Pentair ETi 400 Instructions D'installation

Heater Will Not Fire - A
Start Here
Is Green POOL or SPA
LED on?
YES
Check that correct 12-pin
plug is installed (Blue 120
VAC, Red 240 VAC).
NO
If plug is not install:
Install correct plug.
240 VAC plug in 120 VAC
circuit: Replace with
correct plug.
120 VAC plug in 240 VAC
circuit?
Replace Transformer
and Control board. See
Heater Will Not Fire -B,
page 47.
Check Fuse and all other
24 V components for
damage.
GO TO
HEATER WILL NOT FIRE - B
Page 46
Rev. C 4/2017
Press POOL ON or SPA ON
NO
button on Control Panel
Does POOL or SPA LED come
on?
YES
Check for line voltage to
heater.
YES
Check for 24 VAC at secondary
on Transformer
YES
Check for Line Voltage
between L1 and L2 terminals
on Terminal Board.
Check for Line Voltage at
Transformer primary pins.
White connects to Pin 3 on
Transformer, Black to Pin 2,
Orange to Pin 1.
120 VAC: Check Pin 2 to Pin 3
240 VAC: Check Pin 1 to Pin 3
Jumper Fireman's Switch at
Terminal Board and press
POOL ON or SPA ON button
on membrane pad. Does POOL
or SPA LED come on?
Leaving jumper in place,
YES
check for 24 VAC between
Fireman's Switch terminals
and ground.
Remove jumper. Check ribbon
cable connection between
Membrane Pad and J8 on
Control Board. Press POOL ON
SPA ON button on Control
NO
Panel again. . . Does POOL or
SPA LED come on?
Jumper pins 6 and 5 on J8 of
Control Board. Does SPA LED
come on?
Jumper pins 6 and 4 on J8 of
Control Board. Does POOL
LED come on?
YES
NO
NO
NO
NO
YES
NO
YES
YES
NO
NO
YES
YES
NO
ETi 400 High Efficiency Pool and Spa Heater Installation and User's Guide
Section 3: Troubleshooting
Heater should fire on demand
for heat.
Restore power to heater.
Check wiring connections
between power supply and
Junction Box and between
Junction Box and Terminal
Board; restore continuity.
Check wiring connections
between Terminal Board and
Transformer primary and
restore continuity.
Replace Transformer.
Check Fireman's Switch circuit
connections (time clock, wiring,
external controller relay).
Remove jumper. Check wiring
between Transformer and J9
terminals on Control Board
and between J9 and
Fireman's Switch on Terminal
Board, check fuse, and
restore continuity.
Heater should fire on
demand for heat.
Replace membrane pad.
Replace Control Board.
45