Owner`s manual
Page 20
HW42DF Gas Fireplace
Part No. XG0191 - 031010
Gas Control Valve
Pilot Burner Adjustment
1. Locate Pilot Adjustment Screw. (See gure 34.)
2. Adjustpilotscrewtoprovideproperlysizedameasshownin
gure 34).
3. After installing or servicing, leak test with a soap solution with
main burner on. Coat pipe and tubing joints, gasket etc. with soap
solution. Bubbles indicate leaks. Tighten any areas where the
bubbles appear until the bubbling stops completely.
Figure 34. Pilot Burner.
Troubleshooting
The following is a troubleshooting chart of possible problems:
PROBLEM CORRECTIVE ACTION
Noisy Pilot Flame Locate pilot adjustment screw on
gas control valve. Flame is decreased by
turning adjustment screw clockwise.
Pilot won’t ignite Disconnect remote wires and try to
light pilot. If pilot now works, remote
connections are faulty. Check wiring
diagram gure 30.
Main burner will 1. Check wiring (see gure 30).
not light 2. Check wall switch for proper
connection.
HW42DF
Figure 33. Sit Nova 820 gas valve.
Manifold Pressure
Test Connection
Pilot Adjustment Screw
Inlet
Pressure
Power
Generator
Wall Switch
Spill Switch
Maintenance