Troubleshooting
Disclaimer
Do not perform troubleshooting without approval from the Board.
Manuals
Bartlett V6-CF Manual.pdf (Jill - Blue kiln)
Common symptoms for troubleshooting
- Firing duration is weirdly high
- Pieces are being fired inconsistently (some are over-fired, others under-fired, within the same firing)
If you think something is going wrong in the kiln, check the relays first!
Relays
- Disconnect power from the kiln
- Note the wiring (take photos)
- Remove the relays individually, testing them on the bench power supply
- 3 terminals will receive power
- Connectivity when power is supplied should be present through the remaining sets of terminals
- Verify the relay pinouts to be sure on which terminals are used
- Ensure all spade connections are tightly coupled. It should require fairly significant effort to disconnect the relays. Tighten with pliers as needed.
After replacing needed relays:
- Run a test fire
- At approximately 100 degrees Celsius, do a paper/heat test on each element to confirm operation
Kiln elements
- Verify that the thermocouples look okay, not damaged, and no pieces or shelves are too close (this could cause a false positive).
- Disconnect power from the kiln
- Open the front control panel
- Note the wiring (take photos)
- Remove the screw terminal connectors which attach to the elements
- Using a multimeter, record the resistance of all 6 elements
- If any of the 6 elements are more than 10% out of spec, replace all elements (values are recorded below)
Replacing elements:
- TODO
After replacing the elements:
- Run a test fire
- At approximately 100 degrees Celsius, do a paper/heat test on each element to confirm operation
Jill (blue coneart) expected resistance values
Element |
Nominal |
In spec range |
1 (top) | 14.2 Ohms | 12.78 - 15.62 Ohms |
2 | 17.9 Ohms | 16.11 - 19.69 Ohms |
3 | 17.9 Ohms | 16.11 - 19.69 Ohms |
4 | 17.9 Ohms | 16.11 - 19.69 Ohms |
5 | 17.9 Ohms | 16.11 - 19.69 Ohms |
6 (bottom) | 14.2 Ohms | 12.78 - 15.62 Ohms |