Troubleshooting - Heatmaster DG-SS-18 Installation Instructions Manual

D. Troubleshooting
With proper installation and maintenance, your new decorative gas appliance should provide years of trouble-free service.
If you do experience a problem, refer to the troubleshooting guide below. This guide will assist you or a qualified service
technician in the diagnosis of problems and the corrective action to be taken.
Symptoms
1. A match will not light the
pilot.
. The pilot lights, but
will not stay lit after
carefully following lighting
instructions.
3. The pilot is on, but there is
no gas to the main burner;
the valve knob is on.
14
• Heatmaster/American Gas Log Outdoor Burner/Hearth Kits • IM-116 • 03/09
Possible Causes
A. Main gas shutoff valve is
closed
B. There is air in the gas line. 1. Light a match. Turn the valve knob to the "PILOT"
C. The valve knob is in the
"OFF" position.
D. The pilot orifice is plugged,
not allowing gas to flow.
E. There is no gas supply to
the fireplace.
A. The thermocouple is too
tight or too loose.
B. There is a weak pilot
flame.
C. Defective thermocouple
A. A blockage is preventing
gas flow.
B. Defective valve.
Corrective Action
1. Make sure that the shutoff valve located on the
incoming gas line is open.
position and depress. Keep the match near the pilot
burner until it lights.
1. Turn the valve knob to the "PILOT" position and
depress. Keep the match near the pilot burner until it
lights.
1. This repair requires tools and some degree of
experience. Call a qualified service technician.
1. Check the plumbing to ensure the fireplace has been
hooked up the gas supply line.
. The propane tank is empty.
1. The thermocouple must be attached to the valve
finger-tight plus a 1/8 turn with a wrench.
1. The pilot flame must engulf the thermocouple.
Clean and/or adjust the pilot for maximum flame
impingement on the thermocouple.
1. Check the thermocouple with a millivolt meter as
follows: Disconnect the thermocouple from the valve
and connect the red lead of the meter to the silver end
of the thermocouple. Connect the black lead of the
meter to the copper tubing of the thermocouple. Light
the pilot and keep the knob depressed while taking
readings. The meter readings should be greater than
14 mV. If not, replace the thermocouple.
1. Inspect the burner orifice for obstruction. Call a
qualified service technician.
1. Replace the gas valve. Call a qualified service
technician.