Dear Sandra, You must find the magic eye which should b at the end of possibly a black lead and it is possibly held in by a rubber casing , so gently lever it from side to side whilst maintaining a pulling pressure on it. If u succeed then clean the end of it and you should c the small 3 mm glass eye at the end of it. MAKE SURE THE BURNER IS SWITCHED OFF BEFORE U BEGIN THE WORK. Try this ,reassemble and good luck. Sean.
sean martin, December 2009