Wayne P250AF-DI, P250AF-EP, P265-EP, P265F specifications Start

START

TURN GAS SUPPLY OFF,

TURN THERMOSTAT

(CONTROLLER) TO CALL

FOR HEAT

POWER TO MODULE

(24V NOMINAL)

YES

SPARK ACROSS

IGNITER/SENSOR GAP

YES

TURN GAS SUPPLY ON

PILOT BURNER LIGHTS?

YES

SPARKS STOP WHEN

PILOT IS LIT?

YES

MAIN BURNER LIGHTS?

YES

SYSTEM RUNS UNTIL CALL FOR HEAT ENDS?

YES

CALL FOR HEAT END

SYSTEM SHUTS OFF?

YES

S8600, S8610 TROUBLESHOOTING GUIDE

	NOTE: Before troubleshooting, familiarize yourself with the start up and checkout procedure.
NO	Check line voltage power, low voltage transformer, limit controller, thermostat (controller) and
	wiring. Also, check air proving switch on combustion air blower system (if used) and that vent
	damper (if used) is open and end switch is made.
	Pull ignition lead and		• On modules with vent damper plug, make sure
	check spark at module		vent damper has not been installed, then
		NO	removed. Replace vent damper if necessary.
NO	Spark okay?		• On other models, replace module.
	YES
	• Check ignition cable, ground wiring, ceramic insulator and gap, and correct.
	• Check boot of the ignition cable for signs of melting or buckling. Take protective
	action to shield cable and boot from excessive temperatures.

NO	• Check that all manual gas valves ar open, supply tubing and pressures are good, and pilot
	burner orifice is not blocked.

•Check electrical connections between module and pilot operator on gas control.

•Check for 24 Vac across PV-Mv/PV terminals on module. If voltage if okay, replace gas control; if not, replace module.

	NOTE: If S8600B, H; S8610B, H goes into lockout, reset system. For S8600M, wait 6 min.
	norm. for retry or reset system.
	• Check continuity of ignition cable and ground wire.
NO	• Clean flame rod.
	• Check electrical connections between flame rod and module.
	• Check for cracked ceramic flame rod insulator.
	• Check that pilot flame covers flame rod and is steady and blue.
	• Adjust pilot flame.
	• If problem persists, replace the module.
NO	• Check for 24 Vac across MV-MV/PV terminals. If no voltage, replace module.
	• Check electrical connections between module and gas control. If okay, replace gas control
	or gas control operator.
	NOTE: If S8600B, H; S8610B, H goes into lockout, reset system. For S8600M, wait 6 min.
	norm. for retry or reset system.
NO	• Check continuity of ignition cable and ground wire.
	NOTE: If ground is poor or erratic, shutdowns may occur occasionally even though operation
	is normal at the time of checkout.
	• Check that pilot flame covers flame rod and is steady and blue.
	• If checks are okay, replace the module.

NO • Check for proper thermostat (controller) operation.

•Remove MV lead at module; if valve closes, recheck temperature controller and wiring; if not, replace gas control.

TROUBLESHOOTING

ENDS

Repeat procedure until trouble free operation is obtained.

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