Go Power Inverter / Charger: “Red slow blink (OVP)”
warning RV inverter fault codes
What it means
Over Voltage Protection. The DC input voltage is above specification, so the inverter/charger shuts down to protect itself. The status LED slow-blinks red; the audible alarm sounds three beeps.
Most likely causes
- External charging source (alternator or solar controller) pushing battery voltage too high most likely
- Out-of-regulation alternator or charge controller common
- Incorrect system voltage for the unit less common
Safe checks you can do yourself
- Check active charging sources and reduce or disconnect the over-voltage source
- Verify battery system voltage matches the inverter's rating
- Have alternator/charge controller regulation checked
How to reset / clear Red slow blink (OVP)
- Correct the input voltage so it returns within specification
- The unit restarts automatically once voltage falls below the High Battery Cut In level (around 14.5 VDC on 12V models)
When to call a technician
If no external charging source is present but OVP keeps tripping, have the DC charging system inspected by a qualified technician.
Applies to
IC-2000-12 · IC-3000-12 · IC Series Inverter/Charger
FAQ
What does Go Power Inverter / Charger code "Red slow blink (OVP)" mean?
Over Voltage Protection. The DC input voltage is above specification, so the inverter/charger shuts down to protect itself. The status LED slow-blinks red; the audible alarm sounds three beeps.
How do I reset Go Power Inverter / Charger Red slow blink (OVP)?
Correct the input voltage so it returns within specification The unit restarts automatically once voltage falls below the High Battery Cut In level (around 14.5 VDC on 12V models)
What is the most common cause of Red slow blink (OVP) on a Go Power Inverter / Charger?
The most likely cause is external charging source (alternator or solar controller) pushing battery voltage too high.
Related · Go Power inverter / charger
Over Load Protection or Short Circuit Protection. While inve… Red fast blink (UVP)
Under Voltage Protection / Low Battery. The DC input voltage…
Sources
- Go Power! IC Series Inverter/Charger Owner's Manual — Status LED Indicator table (Red Slow Blink = Over Voltage Protection) and Beep Counts table (3 = OVP) (Go Power! (GP Electric / Dometic))
Note: Go Power IC Series signals faults via status-LED color/blink plus audible beep counts rather than numeric display codes.
● Last verified 2026-06-29 · compiled from manufacturer documentation. Codes can vary by model year — always cross-check your unit’s manual.