Hi,
your main board or powersupply is faulty
or
One problem involves the lamp cage being loose. The fix is easy. All you do is remove the lamp and put it back in, making sure everything is tight. I guess they had a problem at the factory, for a while, not tightening the lamp cage. After a certain number of heating cycles, the lamp quits making connection.
thank you for using fixya,rate my answer
vijay
Were can I find the lamp cage
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