Go Power Inverter / Charger: “Red fast blink (UVP)”
warning RV inverter fault codes
What it means
Under Voltage Protection / Low Battery. The DC input voltage is below specification (battery reached the Low Battery Cut Out, default 10.5 VDC), so the inverter shuts down to protect the battery. The status LED fast-blinks red; the alarm sounds four beeps.
Most likely causes
- Battery bank discharged to the low-voltage cutout most likely
- Undersized DC cabling or loose/corroded connections causing voltage drop common
- Aged or failing battery common
- Blown DC fuse or open circuit breaker in the DC path less common
Safe checks you can do yourself
- Recharge the battery with shore power or a generator
- Check DC fuses, breakers, and cable terminals for breaks or looseness
- Verify DC cable gauge is correct for the run length
- Reduce DC loads while recharging
How to reset / clear Red fast blink (UVP)
- Supply AC shore power and let the battery recover above the Low Battery Cut In (12.5 VDC); the unit restarts automatically
- Alternatively turn the unit off and on at the on/off switch or remote after the battery recovers
When to call a technician
If the battery will not hold charge or UVP recurs with a charged, properly cabled battery, have the battery and DC system serviced.
Applies to
IC-2000-12 · IC-3000-12 · IC Series Inverter/Charger
FAQ
What does Go Power Inverter / Charger code "Red fast blink (UVP)" mean?
Under Voltage Protection / Low Battery. The DC input voltage is below specification (battery reached the Low Battery Cut Out, default 10.5 VDC), so the inverter shuts down to protect the battery. The status LED fast-blinks red; the alarm sounds four beeps.
How do I reset Go Power Inverter / Charger Red fast blink (UVP)?
Supply AC shore power and let the battery recover above the Low Battery Cut In (12.5 VDC); the unit restarts automatically Alternatively turn the unit off and on at the on/off switch or remote after the battery recovers
What is the most common cause of Red fast blink (UVP) on a Go Power Inverter / Charger?
The most likely cause is battery bank discharged to the low-voltage cutout.
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Sources
- Go Power! IC Series Inverter/Charger Owner's Manual — Status LED Indicator table (Red Fast Blink = Under Voltage Protection); Low Battery fault; Factory Default LBCO 10.5 VDC; Beep Counts (4 = UVP) (Go Power! (GP Electric / Dometic))
Note: Default LBCO is 10.5 VDC but is adjustable with the GP-ICR-50 remote.
● Last verified 2026-06-29 · compiled from manufacturer documentation. Codes can vary by model year — always cross-check your unit’s manual.