CTC Electrical Short / Overcurrent

CTC water heater trips the circuit breaker or blows fuses

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Shorted heating element, Damaged wiring insulation, Water intrusion into electrical compartment, Undersized breaker

Safety first: Turn off the breaker and verify no voltage is present before inspecting wiring.

Steps to check:

Inspect wiring inside the junction box and around heating elements for burns or exposed copper; repair or replace as needed.
Test each heating element for continuity to ground; replace any element that is grounded.
Check for signs of water leaks into the electrical compartment and correct the leak source.
Verify that the breaker size matches the CTC nameplate rating; upgrade only if wiring is appropriately sized and per code.

Hard 4/5

Heating Element

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