CFM UVHB10 - Manual (Page 10)

10
PYROMASTER
®
UVHB10 Vent-Free Heaters
20004232
1. Pilot will not light with A. Main shutoff valve closed 1. Make sure that the shutoff valve located on the pipe
piezo ignitor or match. supplying gas to the fireplace is open.
B. Air in the gas line. 1. Light a match, turn gas valve knob to "PILOT"
position and depress. Keep match near pilot burner till
it lights.
C. Pilot orifice plugged, not 1. Replace the burner assembly.
letting gas flow.
D. No gas supply to the 1. Check plumbing to see if gas fireplace has been
fireplace. hooked up to the gas supply line.
2. Propane tank is empty.
2. Pilot will not stay lit A. Defective thermocouple 1. Replace burner assembly.
after carefully following
the lighting instructions.
B. Thermocouple fitting not 1. Carefully tighten the fitting.
tight in valve
C. Weak pilot flame. 1. The pilot flame must engulf the thermocouple.
Clean for maximum flame impingement on the
thermocouple.(Fig. 12)
D. Defective valve. 1. Replace the burner assembly.
E. Not enough oxygen in 1. Open the door and get fresh air at once!
the room (Danger!)
3. No gas to main burner A. Thermostat bulb too hot 1. Relocate thermostat bulb away from the heater in a
burner with pilot flame location more representative of room temperature.
burning and valve turned
to "High-Low" range.
B. Plugged main burner 1. Replace burner assembly.
orifice.
C. Defective valve. 1. Replace burner assembly.
Troubleshooting
With proper installation and maintenance, your new Gas Appliance should provide years of trouble-free service. If
you do experience a problem, this guide will help a
CERTIFIED SERVICE PERSON in the diagnosis of problems
and the corrective action to take.
SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION