Over-temperature fault codes
38 codes across 15 brands whose manufacturer wording names an over-temperature, overheating or high-temperature condition.
A family groups codes by the manufacturer's wording. It does not mean the codes share a cause, a trip setting or a fix: the same words can describe different measurements on different hardware, so work each code from its own entry and its manufacturer's document.
Codes by brand
Fronius
3 of 29 codes · open librarySolarEdge
6 of 361 codes · open libraryEnphase
1 of 13 codes · open librarySigenergy
1 of 13 codes · open libraryHoymiles
2 of 31 codes · open libraryWork it on site
Symptom-led sequences and checks that record the evidence for this kind of alarm. Follow the code's own entry for its documented step.
Standards scope
Scope pages: what each standard covers and where it sits against the others. They do not reproduce the standard, and nothing on this page states what it requires. Work from the current published edition.
How codes are placed here
A code joins only when the manufacturer's own title or description contains one of these terms as whole words. The title decides first; Wattbench's fixes and search keywords are never read. A code that matches no family, or more than one, stays unclassified.
- over-temperature
- overtemp
- temp over
- temp high
- high temperature
- high ambient temperature
- heat-sink high temperature
- temperature is too high
- temperature is too hot
- ambient temperature is too high
- temperature is critical
- running too hot
- too hot
- excessive temperature
- temperature around the inverter is too high
- overheat
- overheating