Troubleshooting Assistant

Fused glass does not always behave the way we expect. A piece may crack, trap bubbles, develop cloudy patches, stick to the shelf, slump unevenly, or come out looking underfired or overfired. When that happens, it can be difficult to know whether the cause was the glass, the firing schedule, the kiln, the shelf setup, the mould, or the way the piece was assembled.

This Fused Glass Troubleshooting Assistant is designed to help you work through common fused glass problems in a practical way. Select the issue that best matches your result, answer a few questions about your project and firing, and the tool will generate a troubleshooting report with likely causes, things to check, possible changes for your next firing, and prevention tips.

The report is not a guaranteed diagnosis. Firing results can vary between kilns, glass brands, project thicknesses, moulds, shelf setups, controller accuracy, and firing schedules. Use the suggestions as a guide, then make careful notes and test changes in your own kiln.

For best results, keep a kiln log and record the glass used, project size, thickness, firing schedule, shelf position, separator, mould, and the final result. Over time, those records often become the most useful troubleshooting tool you have.