Vermont Casting RHE42 - Manual (Page 16)

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Vermont Castings, Majestic Products RHE Natural Vent Insert
Eurosit 630 Gas Valve
NOTE: Before troubleshooting 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 Check pilot flame. Must impinge on thermocouple.
carefully following lighting thermocouple. Clean and or adjust pilot for maximum flame impinge-
ment instructions. 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 the
burner, Valve knob "ON". location. lower right hand side of unit.
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 leak in liner or seals. Check the venting for leaks or blockage.
Troubleshooting the Gas Control System