Vermont Casting RFS32 - Manual (Page 13)

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SIT 630 GAS VALVE
Note: Before trouble shooting the gas control system, be sure external gas shut off is in the "On" position.
WARNING: BEFORE DOING ANY GAS CONTROL SERVICE WORK, REMOVE GLASS FRONT.
SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION
1. Spark ignitor will not light A. Defective or misaligned Using a match, light pilot. If pilot lights, turn off pilot and
electrode at pilot. push the red button again. If pilot will not light - check gap
at electrode and pilot-should be 1/8" to have a strong spark.
B. Defective ignitor (Push Button) Push Piezo Ignitor Button. Check for spark at electrode and
pilot. If no spark to pilot, and electrode wire is properly
connected, replace ignitor.
2. Pilot will not stay lit after A. Defective pilot generator 1. Check pilot flame. Must impinge on thermocouple.
carefully following lighting thermocouple. Clean and or adjust pilot for maximum flame impingement
instructions. on thermocouple.
B. Defective automatic valve Turn valve knob to "Pilot". Maintain flow to pilot; millivolt
operator. meter should read greater than 10 mV. If the reading is
okay and the pilot does not stay on, replace the gas
valve. Note: An interrupter block (not supplied) must be
used to conduct this test.
3. Pilot burning, no gas to A. Sensing bulb not in proper Make sure sensing bulb is located in bracket on the lower
burner, Valve knob "ON". location. right hand side of fireplace.
B. Temperature sensing bulb Carefully examine sensing bulb and capillery tube for
damaged or tubing to bulb damage. If tubing is kinked, replace gas valve.
kinked
4. Frequent pilot outage A. Pilot flame may be too low Clean and/or adjust pilot flame for maximum flame
problem. or blowing (high) causing the impingement on thermocouple.
pilot safety to drop out.
B. Possible blockage of the vent Check the vent terminal for blockage.
terminal.
C. Loose connections to/from the Check wires on the vent safety switch at the draft hood relief
vent safety switch opening and at the junction block where the thermocouple
meets the gas valve.
TROUBLE SHOOTING THE GAS CONTROL SYSTEM