Troubleshooting
22 3A1570L
Erratic hose temperature.
Faulty thermocouple connections. Verify that all FTS connections are
snug and that pins of connectors are
clean. Examine connection of ther-
mocouples to long green plug on
heater control board. Unplug and
re-plug thermocouple wires, cleaning
off any debris. Unplug and re-plug
long green connector.
FTS not installed correctly. FTS should be installed close to end
of hose in same environment as gun.
Verify FTS installation, page 33.
Missing/damaged insulation around
FTS, causing the hose heat to be ON
constantly.
Make sure bundle has adequate
insulation evenly covering the entire
length and connection joints.
Hose does not heat.
FTS failed or is not contacting
correctly.
Check FTS, page 12.
FTS not installed correctly. FTS should be installed close to end
of hose in same environment as gun.
Verify FTS installation, page 33.
Temperature control alarm. Check temperature display or diag-
nostic code, page 33.
Hoses near Reactor are warm, but
hoses downstream are cold.
Shorted connection or failed hose
heating element.
With hose heat on and temperature
setpoint above displayed hose zone
temperature, verify voltage between
connectors at each section of hose.
Voltage should drop incrementally for
each section of hose further from
Reactor. Use safety precautions
when hose heat is turned on.
PROBLEM CAUSE SOLUTION