Gas Control Valve; Pilot Burner Adjustment; Troubleshooting - Montigo HW42DF Installation, Operation & Maintenance Manual

HW42DF Gas Fireplace

Gas Control Valve

Pilot Adjustment Screw
Inlet
Pressure Manifold Pressure
Test Connection
Figure 33. Sit Nova 820 gas valve.

Pilot Burner Adjustment

1. Locate Pilot Adjustment Screw. (See figure 34.)
2. Adjust pilot screw to provide properly sized flame as shown in
figure 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
Noisy Pilot Flame
Pilot won't ignite
Main burner will
not light
Page 20
Maintenance
Power
Generator
Wall Switch
Spill Switch
HW42DF
CORRECTIVE ACTION
Locate pilot adjustment screw on
gas control valve. Flame is decreased by
turning adjustment screw clockwise.
Disconnect remote wires and try to
light pilot. If pilot now works, remote
connections are faulty. Check wiring
diagram figure 30.
1. Check wiring (see figure 30).
2. Check wall switch for proper
connection.
Part No. XG0191 - 031010