Quadra-Fire QV36DC-A Troubleshooting, Standing Pilot Ignition System, Symptom, Possible Causes

A.5			With proper installation, operation, and maintenance your gas fireplace will
			provide years of trouble-free service. If you do experience a problem, this
			troubleshooting guide will assist a qualified service person in the diagnosis
			of a problem and the corrective action to be taken. This troubleshooting
	Troubleshooting		guide can only be used by a qualified service technician.
Standing Pilot Ignition System
Symptom		Possible Causes		Corrective Action
1. After repeated triggering		a. Defective ignitor.		Check the spark at the electrode and pilot. If no spark and electrode
of the red or black piezo				wire is properly connected, replace the ignitor.
ignitor button, the spark
		b. Defective pilot or misaligned		Using match, light the pilot. If the pilot lights, turn off the pilot and
ignitor will not light the pilot.
		electrode (spark at electrode).		trigger the red piezo ignitor button again. If the pilot lights, an im-
				proper gas/air mixture caused the bad lighting and a longer purge
				period is recommended. If the pilot will not light, ensure the gap
				at the electrode and pilot is one-eighth (1/8) inch to have a strong
				spark. If the gap is OK, replace the pilot.
		c. No gas or low gas pressure.		Check the remote shut-off valves from the fireplace. Usually, there
				is a valve near the gas main. There can be more than one (1) valve
				between the fireplace and the main.
		d. No LP in tank.		Check the LP (propane) tank. You may be out of fuel.
2. The pilot will not stay lit		a. Defective thermocouple.		Check that the pilot flame impinges on the thermocouple. Clean
after carefully following the				and/or adjust the pilot for maximum flame impingement.
lighting instructions.				Ensure that the thermocouple connection at the gas valve is fully
				inserted and tight (hand tighten plus 1/4 turn).
				Disconnect the thermocouple from the valve, place one millivolt
				meter lead wire on the tip of the thermcouple and the other meter
				lead wire on the thermocouple copper lead. Start the pilot and hold
				the valve knob in. If the millivolt reading is less than 15mV, replace
				the thermocouple.
		b. Defective valve.		If the thermocouple is producing more than 15 millivolts, replace
				faulty valve.
3. The pilot is burning,		a. ON/OFF switch or wires		Check the ON/OFF switch and wires for proper connections. Place
there is no burner flame,		defective.		the jumper wires across the terminals at the switch. If the burner
the valve knob is in the ON				comes on, replace the defective switch. If the switch is OK, place the
position, and the ON/OFF				jumper wires across the switch wires at the gas valve. If the burner
switch is in the ON position.				comes on, the wires are faulty or connections are bad.
		b. Thermopile may not be gener-		If the pilot flame is not close enough physically to the thermopile,
		ating sufficient millivoltage.		adjust the pilot flame.
				Be sure the wire connections from the thermopile at the gas valve
				terminals are tight and that the thermopile is fully inserted into the
				pilot bracket.
				Check the thermopile with a millivolt meter. Take the reading at
				TH-TP&TP terminals of the gas valve. The meter should read 325
				millivolts minimum, while holding the valve knob depressed in the
				pilot position, with the pilot lit, and the ON/OFF switch in the OFF
				position. Replace the faulty thermopile if the reading is below the
				specified minimum.
				With the pilot in the ON position, disconnect the thermopile leads
				from the valve. Take a reading at the thermopile leads. The read-
				ing should be 325 millivolts minimum. Replace the thermopile if the
				reading is below the minimum.

Quadra-Fire • QV36DC-A • 2161-900 Rev. C • 6/09 35