8
E-100-L Installation Instructions
Troubleshooting Guide
Problem
Light is dim or off.
Problem
Cap cannot be tightened
completely.
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Tyco Thermal Controls
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Houston, TX 77036
USA
Tel: 800-545-6258
Tel: 650-216-1526
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Fax: 650-474-7711
info@tycothermal.com
www.tycothermal.com
Troubleshooting steps
1. Check that light voltage rating matches supply voltage for heat-tracing circuit. Supply voltage lower or
higher than light rating will cause malfunctions.
2. Check that heat-tracing circuit is energized. Although the circuit breaker is on, control devices such as
thermostats may switch heating cable off.
3. Following electrical safety procedures, disconnect supply voltage, unscrew light from end seal base and
check that crimp connections to heating cable bus wires are tight and not crossed or shorted. Loose
connections or shorts will cause malfunctions.
4. With circuit off, attach volt meter leads to crimps. Energize circuit and measure voltage at light. Use the
following table to determine whether the voltage measured is within the acceptable range.
Catalog name
E-100-L1
E-100-L2
• If voltage at light is in acceptable range and connections are good, the light may be defective or
damaged. Replace light.
• If there is no voltage at the light, there may be breaks in the heating cable between the power
connection and the end seal. Check for splice or tee connections that may be left open.
• If voltage at light is above specified limits, the light may be off. Voltages above specified range can damage
light. Replace light with correct version for line supply voltage or adjust supply voltage accordingly.
• If voltage at light is present but below specified limits, the light may be dim or off. The following table
lists typical causes for low voltages and possible solutions.
Cause
Supply voltage at start of circuit is low (light is
designed to work with supply voltages within 10%
of nominal).
Heating cable length is too long (light is designed
to work with published maximum circuit lengths).
Heating cable is started under very cold conditions
(heating-cable voltage drop is very high for first
minutes of very cold start-up).
Heating cable controller is reducing voltage (light
may not work with controllers that phase fire to
reduce line voltage).
Troubleshooting steps
1. Check that heating cable is installed and stripped correctly. The top of the insulated parallel crimps should
be 2 3/8 in (60 mm), or less, above the top of the plastic strain relief in the stand.
2. Check that core sealer is positioned properly. The end of the core sealer must be flush against the plastic
strain relief in the stand.
3. Check that the threads on the light and stand are clean. The connection wires between the heating cable
and the light should not be caught in stand threads.
Tyco, BTV, QTVR, XTV, KTV and VPL are registered and/or unregistered trademarks of Tyco Thermal Controls LLC or its affiliates.
All other trademarks are the property of their respective owners.
Important: All information, including illustrations, is believed to be reliable. Users, however, should independently evaluate the
suitability of each product for their particular application. Tyco Thermal Controls makes no warranties as to the accuracy or
completeness of the information, and disclaims any liability regarding its use. Tyco Thermal Controls' only obligations are those
in the Tyco Thermal Controls Standard Terms and Conditions of Sale for this product, and in no case will Tyco Thermal Controls
or its distributors be liable for any incidental, indirect, or consequential damages arising from the sale, resale, use, or misuse of
the product. Specifications are subject to change without notice. In addition, Tyco Thermal Controls reserves the right to make
changes–without notification to Buyer–to processing or materials that do not affect compliance with any applicable specification.
Nominal voltage
100–120 Vac
200–277 Vac
Solution
Increase power wire gauge size to reduce volt-
age drop between panel and heating cable power
connection.
Split heating cable into multiple circuits. Shorten
length of heating cable.
Wait for heating cable to warm up. Voltage at light
will increase.
Turn off phase firing function in heating cable
controller.
Acceptable voltage range
58–132 Vac
145–305 Vac