User Manual

Sealer Sales Page 33
ST-1808-28 Tunnel Service Manual
TROUBLESHOOTING—NO HEAT
NO HEAT (continued)
3. Check the heater bank to make sure the wires are not loose or
broken on the heater bank. Pull the heater bank and make
sure the heater bank has continuity across wires. If not,
replace it.
4. If no control over heat, interchange thermocouple wires at
temperature controller. If still no control, check for
replacement of CR2 or temperature control.