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Problem
Cause
Solution
Aand/or B heaters are overheating
material.
Check primary heaters for either
an RTD problem or a failed
element attached to RTD, see
Electrical Schematics, page 94
Faulty FTS connections.
Verify that all FTS connections are
snug and that pins of connectors
are clean. Unplug and re-plug
RTD wires, cleaning off any debris.
Ambient temperature is too high.
Cover hoses or move to a location
with a lower ambient temperature.
Hose temperature exceeds
setpoint.
Hose insulation over the FTS
location is damaged.
Replace damaged insulation.
Faulty FTS connections.
Verify that all FTS connections are
snug and that pins of connectors
are clean. Unplug and re-plug
FTS wires along length of hose,
cleaning off any debris.
Erratic hose temperature.
FTS not installed correctly.
FTS should be installed close to
end of hose in same environment
as gun. Verify FTS installation,
see
FTS failed.
Check FTS, see
Temperature Sensor (FTS), page
FTS not installed correctly.
FTS should be installed close to
end of hose in same environment
as gun. Verify FTS installation,
see
Loose hose electrical connections. Check connections. Repair as
necessary.
Circuit breakers tripped.
Reset breakers (CB11 and/or
CB15), see
.
Hose zone not turned on.
Turn on hose heat zone.
Hose does not heat.
Aand B temperature setpoints too
low.
Check. Increase if necessary.
334946A
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