Aarrow Fires Gas Stove user manual OSD Pilot, Fault Diagnosis

SERVICING

			FAULT DIAGNOSIS
START
Does the pilot	Yes	Does the pilot	Yes	Does the main	Yes	Does the stove	Yes
ignite?		stay alight?		burner light?		stay alight?

Fire satisfactory

No			No		No
Is the gas supply	No	Is their air in		Yes	Is the main
turned on?
		the system?			injector blocked?
			No	Purge system
Yes	Turn gas				No

on

	No
	Investigate for blocked chimney
	and adaquate ventilation check
Yes	spillage. If their is no obvious
	blockage, seek expert advise.

Clean and replace as necessary

Is the supply	No	Is the
pressure		thermocouple
correct?		o.k.?

	Correct
	pressure
Yes	Yes

No	Check gas supply and operation of
	control valve. Replace if necessary.

Replace pilot assembly

OSD

No

Is their a spark at the		Is pilot flame the correct		Confirm supply
	No			pressure is correct
electrode?		size & playing onto
		thermocouple	Yes

Yes	Check for	No	Replace the pilot
	spark output		OSD assembly
	from control
	valve.

OSD PILOT -

Check if gas is passing from control valve.

Yes

Replace pilot OSD assembly

No Replace pilot

OSD assembly

Replace control valve

Investigate control valve operation and replace if necessary.

Oxygen

Sensing

Device

Pilot

28 Aarrow Sherborne GSL CF