48 · FC 301/302 · WARNING
For 48 · FC 301/302 · WARNING, brand is Danfoss; model / series is FC 301/302; fault code is 48; fault name is 1.8 V supply low; type is WARNING, verified against its source on 2026-09-01.
- Brand
- Danfoss
- Model / series
- FC 301/302
- Fault code
- 48 verified
- Fault name
- 1.8 V supply low verified
- Type
- WARNING verified
- Cause
- The 1.8 V DC supply used on the control card is outside of the allowable limits. The supply is measured on the control card. verified
- Corrective action
- • Check for a defective control card. • If an option card is present, check for overvoltage. verified
What the source says
WARNING 48, 1.8 V supply low
— files.danfoss.com, retrieved 2026-09-01
Where each value comes from
This source states these in separate places, so each value is shown with the passage that states it.
Cause
The 1.8 V DC supply used on the control card is outside of the allowable limits. The supply is measured on the control card.
Corrective action
• Check for a defective control card. • If an option card is present, check for overvoltage.
— all from files.danfoss.com, retrieved 2026-09-01
Source
- files.danfoss.comhttps://files.danfoss.com/download/Drives/MG33MO22.pdf