Nibe Electric heater element failure (stage 2)

E2 alarm, electric heater stage 2 fault, backup heating limited

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

Burnt second‑stage element, tripped thermal cut‑out, faulty second‑stage contactor, wiring fault

Safety: Same precautions as for E1 – power off and lockout before work.

Check dedicated fuses: Some Nibe systems have separate fuses for each heater stage. Replace only with correct rating.
Inspect stage 2 contactor: Look for mechanical damage or burnt contacts.
Reset cut‑outs: Reset any manual thermal cut‑outs on the heater assembly.

Persistent E2 alarms require professional testing of the heater elements and controls.

Hard 4/5

Electric Heater Element Stage 2

Check Price on Amazon

We may earn a commission from links on this page.