Problem: Leak Alarm, but no leak found.
Possible Cause: Cable is dirty (TT1000, TT3000)
Action: Clean cable using water. Dry the cable and check TTC-1
front panel. Heavily contaminated cable may require replacement.
Sensitivity can be adjusted to a lower level, but if dirt is accumulating,
cleaning and/or replacement will eventually be required regardless of
sensitivity setting.
Problem: Leak Alarm, but no leak is found.
Possible Cause: Cable is exposed to occasional water (TT1000,
TT3000)
Action: Increase time delay and/or reposition cable further from the
intermittent source of water. It is best to keep the sensor cable at
least 3 feet from the outflow of any air conditioner units.
Problem: Leak Alarm, but no leak is found.
Possible Cause: Cable is in contact with sharp metal edges
(TT1000, TT3000)
Action: Check the sensor cable for possible points of contact with
sharp edges such as the edges of drip pans or the pipe threads on
adjustable floor supports. Reposition the cable as necessary or insert
a small piece of insulating material to prevent the cable from making
contact with the metal edge.
Problem: Leak Alarm, but no leak is found.
Possible Cause: Cable is pinched (all cables)
Action: Check the sensor cable for possible pinch points. nVent
RAYCHEM TraceTek TT5000 and TT5001 can be tripped if tightly
bent or compressed by a heavy object. TT1000 and TT3000 can be
tripped by heavy pressure from a metallic object. Check the entire
cable installation for pinch points and correct the condition.
Problem: CABLE BREAK indication but cable appears to be intact.
Possible Cause: Loose connections at terminal block.
Action: Check all terminal block screws for tightness. To test the
module by itself, use two small pieces of wire to form temporary
jumpers from red to green and yellow to black at the sensor cable
terminal block. This simulates a very short piece of sensor cable
and the yellow CABLE BREAK LED should go off. If the TTC-1 cannot
pass the jumper wire test, it may require replacement.
Problem: PLC or other host system detects a fault when the
TTC-1 is operating in NORMAL mode.
Possible Cause: Loose connections at terminal block or broken
wires between TTC-1 and PLC.
Action: Check all terminal block screws for tightness. Many
installations use a normally closed contact to indicate a normal
condition at the TTC-1. If the wiring between the TTC-1 and the PLC
is loose or open, then the host system will read the open circuit as a
fault regardless of the TTC-1 status.
Note: Cable Cleaning
TraceTek 1000 and TT3000 use a solid core polymer construction and can usually be easily cleaned with tap water. In extreme
cases or when large amounts of cable are contaminated, these cables can be washed in an ordinary dishwasher. Try a water
only (no detergent) cycle first and avoid the heated dry cycle. When placing the cable in the dishwasher be sure to tightly
connect the male connector on one end to the female connector on the other in order to keep water out of the connectors.
TT5000 and TT5001 cannot be cleaned without special equipment. These cables normally require replacement after
exposure to fuel or solvent.
Troubleshooting Guide
©2018 nVent. All nVent marks and logos are owned or licensed by nVent Services GmbH or its affiliates. All other trademarks are the property of their respective owners.
nVent reserves the right to change specifications without notice.
RaychemTraceTek-IM-H53813-TTC1-EN-1805
nVent.com
North America
Tel +1.800.545.6258
Fax +1.800.527.5703
Europe, Middle East, Africa
Tel +32.16.213.511
Fax +32.16.213.604
Asia Pacific
Tel +86.21.2412.1688
Fax +86.21.5426.3167
Latin America
Tel +1.713.868.4800
Fax +1.713.868.2333
