Heating elements naturally degrade, oxidize, and lose efficiency over time. You will know they need replacing if your kiln takes significantly longer to reach high temperatures or fails to reach target heat entirely.
The covers two primary controller types depending on the manufacturing year: evenheat kiln model 5320 manual
| Segment (C) | Action | Rate (T) | Target Temp (Sv) | Purpose | | :---------- | :----------------------- | :---------- | :---------------- | :----------------------------------- | | 1 | Fast Ramp to Process Temp| 300°F/hr | 1250°F | Bring the kiln up to working temperature | | 2 | | 0 | 1250°F | Hold at 1250°F for 30 minutes | | 3 | Ramp to Fusing Temp | 300°F/hr | 1420°F | Increase temperature to full fusing range | | 4 | Hold (Soak) | 0 | 1420°F | Hold for 30-60 minutes to allow glass to fuse | | 5 | Fast Cool (Flash) | 9999°F/hr | 960°F | Rapid cool to prevent devitrification, then hold for 90 minutes | | 6 | Annealing Cool | 50°F/hr | 800°F | Very slow cool to relieve internal stress | | 7 | Final Cool | 100°F/hr | 600°F | Cool to a safe temperature to turn off | Heating elements naturally degrade