21
10001028
RFSDV22/32/42 Freestanding Direct Vent Fireplace
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
electrode at pilot.
pilot and 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 elec
trode wire is properly connected, replace ignitor.
2. Pilot will not stay lit after
A. Defective pilot generator
Check pilot flame. Must impinge on thermocou
carefully following lighting
thermocouple.
ple. Clean and or adjust pilot for maximum flame
instructions.
impingement on thermocouple.
B. Defective automatic valve
Turn valve knob to "Pilot". Maintain flow to pilot;
operator.
millivolt 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
burner, Valve knob "ON".
location.
the lower right hand side of fireplace.
B. Temperature sensing bulb
Carefully examine sensing bulb and capillery tube
damaged or tubing to bulb
for 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 (recycling flue
terminal.
gases).
Troubleshooting the Gas Control System
