Hearth and Home Technologies CB4236MIR, CB4842MIR Range. Replace pilot if any damage is detected

A. Intellifire Ignition System (continued)

4. Pilot lights but continues	A. A shorted or loose connection	Verify all connections to wiring diagram in manual. Verify connec-
to spark, and main burner	in flame sensing rod.	tions underneath pilot assembly are tight. Verify connections are not
will not ignite. (If the pilot		grounding out to metal chassis, pilot burner, pilot enclosure or screen
continues to spark after		if present, or any other metal object.
the pilot flame has been lit,
flame rectification has not
	B. Poor flame rectification or con-	With fixed glass assembly in place, verify that flame is engulfing
occurred.)	taminated flame sensing rod.	flame sensing rod on left side of pilot hood. Flame sensing rod
		should glow shortly after ignition. Verify correct pilot orifice is in-
		stalled and gas inlet is set to pressure specifications. Clean flame
		sensing rod with emery cloth to remove any contaminants that may
		have accumulated on flame sensing rod.
	C. Module is not grounded.	Verify module is securely grounded to metal chassis of appliance.
		Verify that wire harness is firmly connected to the module.
	D. Damaged pilot assembly or	Verify that ceramic insulator around the flame sensing rod is not
	contaminated flame sensing	cracked, damaged, or loose. Verify connection from flame sensing
	rod.	rod to white sensor wire. Clean flame sensing rod with emery cloth to
		remove any contaminants that may have accumulated on flame sens-
		ing rod. Verify continuity with a multimeter with ohms set at lowest
		range. Replace pilot if any damage is detected.
	E. Module.	Turn ON/OFF rocker switch or wall switch to OFF position. Remove
		ignitor wire “I” from module. Place ON/OFF rocker switch or wall
		switch in ON position. If there is no spark at “I” terminal module must
		be replaced. If there is a spark at “I” terminal, module is fine.
5. The pilot and main burner	A. No LP in tank.	Check the LP (propane) tank. Refill the fuel tank.
extinguish while in opera-
	B. Improper gas inlet pressure.	Verify with manometer. NG should read 5-14 inches w.c. LP should
tion.
		read 10-14 inches w.c.
	C. Inner vent pipe leaking exhaust	Check venting system for damage. Replace/repair improperly as-
	gases back into the system.	sembled pipe sections.
	D. Glass installed improperly.	Check to ensure glass is installed properly. Replace glass panel as-
		sembly.
	E. Improper vent cap installation.	Check for proper installation and freedom from debris or blockage.
	F. High limit switch has been au-	This appliance is equipped with an auto reset high limit switch which
	tomatically activated.	will shut down the appliance if it spills under flue blockage or exces-
		sive negative pressure conditions. Shut off the appliance and the gas
		supply. Do not attempt to operate the appliance until it has been ex-
		amined by a qualified service technician.

Heatilator • Caliber Mesh BV Series • 4040-848 Rev G • 10/08 35