OPERATING HEATER
Continued
4.Wait five (5) minutes to clear out any gas. Then smell for gas including near the floor. If you smell gas, STOP! Follow “B” in the safety information at the top of page 16. If you don’t smell gas, go to the next step.
5.Press in control knob and turn counterclockwise 
C-clockwise
Note: You may be running this heater for the first time after hooking up to gas supply. If so, the control knob may need to be pressed in for 30 seconds. This will allow air to bleed from the gas system.
•If control knob does not pop up when released, contact a qualified service person or gas supplier for repairs.
6.With control knob pressed in, push down and release ignitor button. This will light pilot. The pilot is attached to the front of burner. The burner and pilot are located behind the heat shield. If needed, keep pressing ignitor button until pilot lights.
Note: If pilot does not stay lit, refer to Troubleshooting, pages 20 through 23. Also contact a qualified service person or gas supplier for repairs. Until repairs are made, light pilot with match. To light pilot with match, see Manual Lighting Procedures, page 18.
Ignitor Electrode
Thermocouple
Pilot Burner
Pilot | Figure 17 - Pilot |
GRH/OV 007G |
7.Keep control knob pressed in for 30 seconds after lighting pilot. After 30 sec- onds, release control knob.
Note: If pilot goes out, repeat steps 3 through 7.
8.Turn control knob counterclockwise 
C-clockwise
To turn control knob from LOW to a higher setting, press in the control knob
and turn counterclockwise 
C-clockwise .
Note: Both HIGH and LOW are locked positions. You must press in control knob before turning it from these positions.
!CAUTION
Do not try to adjust heating levels by using the manual shutoff valve.
Continued 17
