Monessen Hearth CDV7 troubleshooting, Standing Pilot Ignition, Symptom, poSSIBLE CAUSE, Action

CDVSC7 & CDV7 Series Gas Fireplace			troubleshooting
Standing Pilot Ignition
SYMPTOM		poSSIBLE CAUSE	ACTION
1.	Spark ignitor will	A. Wire disconnected.	A. Open door and check to make sure wire is connected to
	not light pilot after		ignitor.
	repeated triggering of	B. Defective ignitor.	B. Check for spark at electrode and pilot. If no spark and
	piezo.		electrode wire is properly connected, replace pilot
			assembly.
		C. No gas or low gas pres-	C. Check remote/manual shut off valve from fireplace. Low
		sure.	pressure can be caused by bent lines, restricted lines,
			low pressure line pressure. Consult with plumber or gas
			supplier.
		D. No Propane/LPG in tank	D. Check Propane/LPG tank. Refill tank.
2. Pilot will not stay lit		A. Defective thermocouple	A. Check that thermocouple flame impinges on thermo-
	after carefully follow-		couple. Clean and/or adjust pilot for maximum flame
	ing lighting instruc-		impingement. Ensure that the thermocouple connection
	tions.		at the gas valve is fully inserted and tight.
			Disconnect the thermocouple from the valve, place one
			millivolt lead wire on the tip of the thermocouple 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 15 mV, replace pilot assembly.
			B. If thermocouple is producing more than 15 mV, replace
		B. Defective valve	faulty valve.
3.	Pilot burning, valve		A. Check switch and wire for proper connection. Place
		A. Defective switch, wall	jumper wires across terminals of switch. If burner comes
	knob turned to “ON”,	switch, remote control or	on, replace defective switch.If the switch is OK, repeat
	switch is turned to	wire	the same procedure on remote control If burner comes
	“ON” or “RS”, but		on, replace remote control.
	burner will not ignite.		Place jumper wire across wire at gas valves (terminals
			marked TH and TP/TH). If burner comes on, wires are
			faulty or connections are bad. Replace wire.
			B. If pilot flame is not close enough to the thermopile, adjust
		B. Pilot flame too small	pilot flame.
			C. Check thermopile wire connections to make sure all
		C. Defective or malfunction-	are tight and that the thermopile is fully inserted into
		ing thermopile	pilot assembly. Check thermopile with a millivolt meter.
			Connect leads to TP and TP/TH terminals on the control
			valve. If meter reading is below 325 mV, replace pilot
			assembly.
			D. Turn valve knob to “On” and switch to “ON.” Take a read-
		D. Defective valve	ing at the thermopile leads (TP & TP/TH) on the valve.
			If the meter reads greater than 175 mV and the burner

does not light, replace defective valve.

50 69D3011