What does error 77 mean on a Voltronic device?

77 means: Transformer over temperature. Transformer over temperature.

Is error 77 a fault or a warning?

77 is a fault code: the unit enters protection and stops normal operation until it is cleared.

How do I clear or fix error 77?

Restart the unit. If the fault happens again, contact your installer or the repair centre.

Voltronic device error 77

Transformer over temperature

Fault — the unit enters fault protection and stops normal operation until the fault is cleared — how it is shown (LED pattern or display code) depends on the model.

Galleon II 6K-10K

upsFault

Also applies to:Galleon II 6KGalleon II 10K

What it means

Transformer over temperature — Fault code 77 shown on the display; the UPS has detected a fault condition: Transformer over temperature.

Cause: Transformer over temperature.

How to fix it

Restart the unit.
If the fault happens again, contact your installer or the repair centre.

Source: GalleonII-6-10K-Tower-RT-manual.pdf, p.29

Frequently asked questions

What does error 77 mean on a Voltronic device?: 77 means: Transformer over temperature. Transformer over temperature.
Is error 77 a fault or a warning?: 77 is a fault code: the unit enters protection and stops normal operation until it is cleared.
How do I clear or fix error 77?: Restart the unit. If the fault happens again, contact your installer or the repair centre.

Related error codes

Other codes on the Galleon II 6K-10K

All Galleon II 6K-10K codes

Compiled from official Voltronic user manuals. Always consult your device manual and a qualified technician before performing repairs.