Instruction Manual

14
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
Parts of the electrical
circuit become wet
Use a weatherproof receptacle.
Physical damage to the
heating cable may be
causing a direct short
Check for where there may have been
maintenance work done.
Replace damaged heating cable.
GFCI is undersized
Replace undersized GFCI with 30 mA GFCI.
Low insulation resistance
Nicks or cuts in the
heating cable.
Replace the cable with a new one.
Short between the braid
and heating cable core or
the braid and metal gutters
or downspouts
Icing problems persist
The cable layout pattern
does not prevent ice dams
Observe and record these conditions. Adjust
cable pattern when conditions are suitable.
Rearrange and supply more cable to the needed
areas or reduce the cable in an area that is no
t as
susceptible to ice dams.
Loss of power
Check the power supply to the cable.