Sounds light the 2- 60 watt small base, chandelier bulbs need changing. To access the bulbs and change them does require some dismantling of the base of the insert.
In case you have misplaced your Owners Manual, I have included a link to it that you can download and print for future reference. Pay particular attention to Page # 5 -
Maintenance - Changing Light Bulbs.
http://partner.dimplex.com/files/domain4103/7205650100r04.pdfHope this helps you solve the problem. Please let me know. Thanks
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