Stovax Logic Hotbox & Convector Fire manual Fault Finding Charts

SERVICING INSTRUCTIONS

FAULT FINDING CHARTS

FLAME FAILURE FUNCTIONAL CHECK

PILOT WILL NOT STAY LIT OR FIRE GOES OUT

If the appliance goes out in use continually, this may mean that the

oxygen depletion sensor has been activated. The appliance should not be used

untill the cause has been found and rectified.

Ensure there is no debris arounfd the pilot assembly, e.g. coal, soot, etc.

Check for fluff in the pilot aeration hole. See diagram 7.

Light the pilot and keep the control knob pushed in at least

10 seconds before letting go

With the pilot running is the gas pressure as stated on the datanadge?

YES

Is the pilot

flame of the

correct length? See diagram 7.

NO

Change the

ODS unit

NO	Will the pilot	YES
NO	stay lit?	NO
	Problem is with
	the pipework or
	fittings which lead
	to the fire. Correct
	and retry

	Is thermocouple				NO
	connection good
	in back of valve
YES			NO
		Replace
		ODS unit
				YES
	Will the pilot
		stay lit?
			NO		NO
		Change
		mag unit

With the fire

running on full is

the gas at the pressure stated on the datanadge

Run for 60 sec’s.,

turn off, time

interval until mag unit shuts with a click. Is this greater than 7 seconds?

NO

Tighten the

connection and

retry

Run for 60 sec’s.,

turn off, time

interval until mag unit shuts with a click. Is this greater than 7 seconds?

YES

YES

SYSTEM O.K

20