Instruction Manual

10
D. Troubleshooting
Symptom Problem Causes Correction
Circuit Breaker Trips
Circuit breaker is
undersized.
Replace the circuit breaker if defective or
improperly sized.
Check to see if existing power wire sizing is
compatible with larger sized breakers.
Defective circuit breaker.
Physical damage to the
heating cable may be
causing a direct short.
Check for where there may have been
maintenance work done.
Remove the insulation and replace the cable.
GFCI is undersized.
Replace undersized GFCI with 30-mA GFCI.
Low insulation resistance
Nicks or cuts in the
heating cable.
If heating cable is not yet thermal insulated,
visually inspect the entire length for damage. If
the system is thermal insulated, remove the
insulation and replace the cable.
Short between the braid
and heating cable core or
the braid and pipe.
Frozen Pipe (The heating
cable does not work)
Loose power connection.
If the light inside the power plug is not
illuminated, check the power outlet or circuit to
determine if it has power.
The bi-metal thermostat
inside the black cap is
damaged.
Replace the damaged heating cable with a new
one.
There is another heat
source near the bi-metal
thermostat.
Remove the heat source.
The heat output of the
system cannot compensate
the heat loss of the pipe.
Recheck the selection procedure to make sure
you have selected the corr
ect length and number
of heating cables.