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VL SERIES STEAMER - TROUBLESHOOTING
Pa
g
e 87 of 88
GAS MODELS ONLY
SYMPTOM POSSIBLE CAUSES
Burner won’t li
g
ht. 1. Gas not on.
2. I
g
nition control module reset switch in the OFF position or
malfunctionin
g
.
3. I
g
nition module not receivin
g
power. Check i
g
nition module
transformer for 24VAC output to module on automatic
i
g
nition systems.
4. Steamer not properly
g
rounded and/or polarity of incomin
g
power is incorrect on automatic i
g
nition systems.
5. Low incomin
g
g
as pressure. See “GAS MANIFOLD
PRESSURE ADJUSTMENT” in “SERVICE
PROCEDURES”.
6. I
g
nition module malfunction.
7. Gas combination control valve malfunction.
8. Boiler not fillin
g
. Check fill solenoid for power, clo
gg
in
g
or
malfunction.
9. Water level control malfunction. HL-3 relay not ener
g
izin
g
or contacts not closin
g
to power boiler fill solenoid.
10. Water too ”pure” for probes to properly conduct electricity.
11. Hi
g
h limit thermostat open (if equipped).
12. Hi
g
h limit pressure switch open.
13. Cyclin
g
pressure switch open or set too hi
g
h. Steamer is
cyclin
g
on hi
g
h limit. See “CYCLING AND HI LIMIT
PRESSURE SWITCHES (GAS AND ELECTRIC MODELS)
in SERVICE PROCEDURES”.
Burner won’t stay lit. 1. Gas pressure low. See “GAS MANIFOLD PRESSURE
ADJUSTMENT” in “SERVICE PROCEDURES”.
2. Check
g
as orifice for obstruction.
3. I
g
nition module malfunction.