TROUBLESHOOTING AND REPAIR INSTRUCTIONS FOR L&L KILNS
troubleshoot-general.pdf
REV: 4/15/2017
Page 23
2017
L&L Kiln Mfg, Inc. 505 Sharptown Rd, Swedesboro NJ 08085 856.294.0077 F:856.294.0070 [email protected] hotkilns.com
School-Master Top Element Ohm Chart
VOLTS/
ELEMENT CIRCUIT
MODEL
PHASE OHMS OHMS
SM23T-240 240/1 29.3 14.7
SM23T-208 208/1 25.3 12.7
SM23T-220
220/1 (non-US) 26.8
13.4
SM23T-240-3P 240/1
SM23T-208-3P 208/1
23.0
11.5
SM23T-380-3P
220/1 (non-US) 24.8
12.4
SM28T-240 240/1 29.3 14.7
SM28T-208 208/1 25.3 12.7
SM28T-220
220/1 (non-US) 26.8
13.4
SM28T-240-3P 240/3
20.2
10.1
SM28T-208-3P 208/3
17.6
8.8
SM28T-380-3P
380/3 (non-US) 18.8
9.4
School-Master Bottom Element Ohm Chart
VOLTS/
ELEMENT CIRCUIT
MODEL
PHASE OHMS OHMS
SM23T-240 240/1 28.3 14.2
SM23T-208 208/1 24.5 12.3
SM23T-220
220/1 (non-US) 25.9
13.0
SM23T-240-3P 240/1
SM23T-208-3P 208/1
22.2
11.1
SM23T-380-3P
220/1 (non-US) 24.0
12.0
SM28T-240 240/1 28.3 14.2
SM28T-208 208/1 24.5 12.3
SM28T-220
220/1 (non-US) 25.9
13.0
SM28T-240-3P 240/3
19.6
9.8
SM28T-208-3P 208/3
17.0
8.5
SM28T-380-3P
380/3 (non-US) 18.2
9.1
CHANGING ELEMENTS
SEE THESE VIDEOS FIRST
For most top loading kilns:
hotkilns.com/change-elements-ez
For kilns with Quad elements:
hotkilns.com/change-element-quad
See the instructions in the TROUBLESHOOTING Section of
your instruction Manual (ELEMENT TROUBLESHOOTING
& INSTALLATION INSTRUCTIONS) or here:
hotkilns.
com/element-troubleshooting
REPLACING ELEMENT HOLDERS
See this video:
hotkilns.com/change-element-holder
1) When ordering a new holder provide model number of
kiln and length of the element holder. See the Parts List for
this information.
2) Note that if the holder has melted badly you may need
to either replace the brick that holds it or at least patch the
brick with our Brick Repair Kit.
See the extensive instructions in the TROUBLESHOOTING
Section of your instruction Manual or here:
hotkilns.com/
element-troubleshooting
CRACKS IN THE LID & BOTTOM
See these videos for bad cracks:
hotkilns.com/fix-cracks-front-load
and
hotkilns.com/repair-cracked-top
See this video for hairline cracks:
hotkilns.com/repair-hairline-cracks
See the instructions in the TROUBLESHOOTING Section
of your instruction Manual (TROUBLESHOOTING &
FIXING BRICK PROBLEMS)or here:
hotkilns.com/brick-
troubleshooting
TIGHTENING STAINLESS BANDS
See these videos:
hotkilns.com/replace-side-brick-kiln
h
otkilns.com/replace-side-brick-davinci
See the instructions in the TROUBLESHOOTING Section
of your instruction Manual (TROUBLESHOOTING &
FIXING BRICK PROBLEMS)or here:
hotkilns.com/brick-
troubleshooting
REPLACING FIREBRICK IN SIDES
See these videos:
hotkilns.com/replace-side-brick-kiln
h
otkilns.com/replace-side-brick-davinci
See the instructions in the TROUBLESHOOTING Section
of your instruction Manual (TROUBLESHOOTING &
FIXING BRICK PROBLEMS) or here:
hotkilns.com/brick-
troubleshooting