Installation Guide

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Troubleshooting guide

A Symptom: Overcurrent protection trips or blows

Probable Causes

1 Electrical fault at

a damaged heating cable

b faulty splices or tees

c end seal

d connection

2 Circuit oversized

3 Start-up below design temperature

4 Defective electrical protection

B Symptom: RCD trips

Probable Causes

1 Earth fault at:

a damaged heating cable

b faulty splices or tees

c end seal

d connection

2 Excessive moisture in:

a junction boxes

b splices and tees

c end seals

3 High leakage currents due to a combination

of excessive lengths of power cable and heating cable.

4 Mains borne disturbances

5 Defective RCD