Pentair ETi 400 - Page 48

ETi 400 High Efficiency Pool and Spa Heater Installation and User’s Guide Rev. C 4/2017
48
Diagnostic LEDs: PS, HLS, TF, IGN, AFS, AG1, AG2, FS (Continued)
NOTE 1: Voltage appears immediately
after call for heat, and may be
on for only about 30 seconds.
NOTE 2: Voltage appears about 24
seconds after call for heat, and may
be on for only about 7 seconds.
Replace Fan Control Board.
NO
Check for 24 VAC between V1
and GND terminal on ICM. See
NOTE 1
Check for 24 VAC between START
and GND terminal on Fan Control
Board. See NOTE 1.
Replace Ignition
Control Module.
YES
NO
Check for 24 VAC between
VALVE and GND terminal on
Control Board. See NOTE 2.
Check for 24 VAC between
GAS VALVE on Control Board
See NOTE 2.
Replace Control Board.
NO
YES
YES
NO
YES
Fix wiring between VAL and GND
on ICM and Control Board.
Fix wiring between GAS VALVE
terminals ond Control Board and
gas valve.
Do not jumper a safety switch to
remedy a failed switch.
NOTE: ES1 is a spare and should be jumpered.
CAUTION
A
Section 3: Troubleshooting