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SYMPTOM
Burner won't light.
Burner won't stay lit.
VL SERIES STEAMER - TROUBLESHOOTING
GAS MODELS ONLY
1.
Gas not on.
2.
Ignition control module reset switch in the OFF position or
malfunctioning.
3.
Ignition module not receiving power. Check ignition module
transformer for 24VAC output to module on automatic
ignition systems.
4.
Steamer not properly grounded and/or polarity of incoming
power is incorrect on automatic ignition systems.
5.
Low incoming gas pressure. See "GAS MANIFOLD
PRESSURE ADJUSTMENT" in "SERVICE
PROCEDURES".
6.
Ignition module malfunction.
7.
Gas combination control valve malfunction.
8.
Boiler not filling. Check fill solenoid for power, clogging or
malfunction.
9.
Water level control malfunction. HL-3 relay not energizing
or contacts not closing to power boiler fill solenoid.
10. Water too "pure" for probes to properly conduct electricity.
11. High limit thermostat open (if equipped).
12. High limit pressure switch open.
13. Cycling pressure switch open or set too high. Steamer is
cycling on high limit. See "CYCLING AND HI LIMIT
PRESSURE SWITCHES (GAS AND ELECTRIC MODELS)
in SERVICE PROCEDURES".
1.
Gas pressure low. See "GAS MANIFOLD PRESSURE
ADJUSTMENT" in "SERVICE PROCEDURES".
2.
Check gas orifice for obstruction.
3.
Ignition module malfunction.
Page 87 of 88
POSSIBLE CAUSES
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