Diagnostics Leds: Ps, Hls, Tf, Ign, Afs, Ag1, Ag2, Fs - Pentair ETi 400 NA ASME Guía De Instalación Y De Usuario

Diagnostic LEDs: PS, HLS, TF, IGN, AFS, AG1, AG2, FS
IMPORTANT! READ ME FIRST!!
If your heater is correctly connected to 240 Volts AC, the
Ignition Control Module (ICM) will convert the 240VAC to
an intermittent pulse to the ignitor. Digital meters don't read
this type of signal well. (An analog meter will give a better
reading than a digital meter). If the ICM is bad, your volt-
Ign is "on"
Gas flow during ignition
and burner fire for less than
7 seconds.
NO
NO
Gas flow during ignition try,
but burner does not fire.
YES
Check gas pressure, ok?
YES
Check voltage across spark
electrode with ignition spark
tester.
YES
Check the distance between the
spark electrode rods, and spark
electrode and the burners.
See illustration (A) on page 54.
NO
Adjust the distance between the Spark Electrodes to 0.110 in - 0.160 in.
See illustration (B) on page 54. Also between the Spark Electroides
and the Burners 0.6 in - 0.66 in See illustration (B) on page 54.
Did Blower come on?
YES
Verify that gas supply is open
all the way to Gas Valve, and
Gas Valve is set at "on"
position.
Check for 24 VAC to Gas
Valve terminals during ignition
try. (Voltage appears about 24
seconds after call for heat).
SEE NOTE 2.
NO
A
Continue on next page.
Rev. C 4/2017
IMPORTANT! READ ME FIRST!
meter will read either 0 VAC or 240 VAC. If your ICM is
good, your meter will read some voltage between 0 and
240 VAC. Exactly what reading you get will depend on the
meter, but with a good ICM, the reading won't be 0 VAC or
240 VAC, but somewhere in between.
Verify the connection to the Flame Sensor rod.
Adjust the distance between the Flame
YES
Sensor rod to Burner to 0.6 in - 0.66 in.
See illustration (A) on page 54.
• Increase gas flow
into heater.
• Replace gas line
with larger line.
• Replace gas regulator.
NO
• Replace meter or all
of the above.
NO
Replace Ignition Control Module.
YES
Replace spark electrodes.
See illustration (A) on page 54.
NO
Verify 24 VAC at IND
on Control Board
NO
Replace Control Board.
YES
Replace gas valve
with identical part.
ETi 400 High Efficiency Pool and Spa Heater Installation and User's Guide
Section 3: Troubleshooting
YES
Replace Fan Control Board.
47