Redback Technologies RED-H3-S10HV

This warranty covers defects and malfunctions for 10 years. It excludes damage from unauthorized installations. For claims, contact support.

AI-summarised from the manufacturer warranty document. Always confirm against the linked PDF before relying on it for a claim.

Coverage shape

Full-replacement coverage

If you sell the home

Transfers to the next homeowner

What voids it

Void if installed by non-accredited personnel, any modification or tampering.

Environment limits

Not suitable for installations in full-sun locations or where wind-driven rain may penetrate the enclosure.

Showing 32 of 32. The official install manual is the authoritative source — always confirm before acting.

• E09criticalCall your installer

  Manual (PDF)

  No Grid

  Likely cause

  1. AC breaker is OFF 2. AC plug disconnected 3. Internal fuses are broken

  What to do

  1. Switch on AC breaker 2. Check the connection in AC plug and make sure it connects to inverter 3. Replace fuses and check all switching devices in boost & inverter stages

• E30criticalCall your installer

  Manual (PDF)

  PV Voltage Over

  Likely cause

  1. Actual Solar voltage is over 510Vdc (H2.5) or 560Vdc (H3/H3A/H4A/H5A) 2. Detection circuit malfunction

  What to do

  1. Modify the solar array configuration and make the Voc less than 500Vdc (H2.5) or 550Vdc (H3/H3A/H4A/H5A) 2. Check the detection circuit inside the inverter

• E34criticalCall your installer

  Manual (PDF)

  Insulation Fault

  Likely cause

  1. PV array insulation fault 2. Large PV array capacitance between Plus to Ground or Minus to Ground or both 3. Detection circuit malfunction

  What to do

  1. Check the insulation of Solar inputs 2. Check the capacitance, dry PV panel if necessary 3. Check the detection circuit inside the inverter

• F01criticalCall your installer

  Manual (PDF)

  DC Injection

  Likely cause

  1. Utility waveform is abnormal 2. Detection circuit malfunction

  What to do

  1. Check the utility waveform. Grid connection of inverter needs to be far away from non-linear load if necessary 2. Check the detection circuit inside the inverter

• F05criticalCall your installer

  Manual (PDF)

  NTC OTP

  Likely cause

  1. The ambient temp. is over 60°C 2. Detection circuit malfunction

  What to do

  1. Check the installation ambient temperature and environment 2. Check the detection circuit inside the inverter

• F06criticalCall your installer

  Manual (PDF)

  NTC 0 Circuit Fail

  Likely cause

  1. Ambient temp. >100°C or 2. Detection circuit malfunction

  What to do

  1. Check the installation ambient temperature and environment 2. Check the detection circuit inside the inverter

• F07criticalCall your installer

  Manual (PDF)

  NTC LTP

  Likely cause

  1. Ambient temp. < -40°C or 2. Detection circuit malfunction

  What to do

  1. Check the installation ambient temperature and environment 2. Check the detection circuit inside the inverter

• F09criticalCall your installer

  Manual (PDF)

  Ntc 2 Circuit Fail

  Likely cause

  1. Ambient temp. >100°C or 2. Detection circuit malfunction

  What to do

  1. Check the installation ambient temperature and environment 2. Check the detection circuit inside the inverter

• F15criticalCall your installer

  Manual (PDF)

  HW ADC1

  Likely cause

  1. Auxiliary power circuitry malfunction 2. Detection circuit malfunction

  What to do

  1. Check the auxiliary circuitry inside the inverter 2. Check the detection circuit inside the inverter

• F16criticalCall your installer

  Manual (PDF)

  HW ADC2

  Likely cause

  1. Auxiliary power circuitry malfunction 2. Detection circuit malfunction

  What to do

  1. Check the auxiliary circuitry inside the inverter 2. Check the detection circuit inside the inverter

• F17criticalCall your installer

  Manual (PDF)

  HW ADC3

  Likely cause

  1. Auxiliary power circuitry malfunction 2. Detection circuit malfunction

  What to do

  1. Check the auxiliary circuitry inside the inverter 2. Check the detection circuit inside the inverter

• F19criticalCall your installer

  Manual (PDF)

  HW ADC5

  Likely cause

  1. Auxiliary power circuitry malfunction 2. Detection circuit malfunction

  What to do

  1. Check the auxiliary circuitry inside the inverter 2. Check the detection circuit inside the inverter

• F20criticalCall your installer

  Manual (PDF)

  Efficiency Abnormal

  Likely cause

  1. The calibration is incorrect 2. Current feedback circuit is defective

  What to do

  1. Check the accuracy of current and power 2. Check the current feedback circuit inside the inverter

• F23criticalCall your installer

  Manual (PDF)

  Communication Fault (Disconnected)

  Likely cause

  1. DSP is idling 2. The communication connection is disconnected 3. The communication circuit malfunction

  What to do

  1. Check reset and crystal in DSP 2. Check the connection between DSP and COMM 3. Check the communication circuit

• F24criticalCall your installer

  Manual (PDF)

  RCMU Over Rating

  Likely cause

  1. PV array insulation fault 2. Large PV array capacitance between Plus to Ground or Minus to Ground 3. Either side of boost driver or boost choke malfunction 4. Detection circuit malfunction

  What to do

  1. Check the insulation of Solar inputs 2. Check the capacitance (+ GND & - GND), must an external transformer if necessary 3. Check boost driver & boost choke 4. Check the detection circuit inside the inverter

• F27criticalCall your installer

  Manual (PDF)

  RCMU Circuit Fail

  Likely cause

  1. RCMU is disconnected 2. Detection circuit malfunction

  What to do

  1. Check the RCMU connection inside the inverter 2. Check the detection circuit inside the inverter

• F28criticalCall your installer

  Manual (PDF)

  Relay Test Short

  Likely cause

  1. One or more relays are sticking 2. The driver circuit for the relay malfunction

  What to do

  1. Replace the defective relay(s) 2. Check the driver circuit inside the inverter

• F29criticalCall your installer

  Manual (PDF)

  Relay Test Open

  Likely cause

  1. One or more relays are abnormal 2. The driver circuit for the relay malfunction 3. The detection accuracy is not correct for Vgrid and Vout

  What to do

  1. Replace the defective relay(s) 2. Check the driver circuit inside the inverter 3. Check the Vgrid and Vout voltage detection accuracy

• F35criticalCall your installer

  Manual (PDF)

  HW Bus OVR

  Likely cause

  1. Driver for boost is defective 2. Voc of PV array is over 510Vdc (H2.5) or 560Vdc (H3/H3A/H4A/H5A) 3. Surge occurs during operation 4. Detection circuit malfunction

  What to do

  1. Check the driver circuit for boost inside the inverter 2. Modify the solar array setting, and make the Voc less than 500Vdc (H2.5) or 550Vdc (H3/H3A/H4A/H5A) 3. N/A 4. Check the detection circuit inside the inverter

• F37criticalCall your installer

  Manual (PDF)

  OOCP

  Likely cause

  Detection circuit malfunction

  What to do

  Check the detection circuit inside the inverter

• F42criticalCall your installer

  Manual (PDF)

  CT Sensor Fail (A)

  Likely cause

  1. Inverter choke Fail 2. Output Filter Fail 3. Detection circuit malfunction

  What to do

  1. Check Inverter choke inductance 2. Check output filter capacitance 3. Check the detection circuit inside the inverter

• F60criticalCall your installer

  Manual (PDF)

  IOCP (PV1)

  Likely cause

  1. Switching device in boost is defective 2. Driver for boost is defective 3. Input current detection circuit malfunction

  What to do

  1. Check all switching device in boost 2. Check the driver circuit for boost inside the inverter 3. Check input current detection circuit

• F61criticalCall your installer

  Manual (PDF)

  IOCP (PV2)

  Likely cause

  1. Switching device in boost is defective 2. Driver for boost is defective 3. Input current detection circuit malfunction

  What to do

  1. Check all switching device in boost 2. Check the driver circuit for boost inside the inverter 3. Check input current detection circuit

• E01warningCall your installer

  Manual (PDF)

  Over Frequency

  Likely cause

  1. Actual utility frequency is higher than the OFR setting 2. Incorrect country setting 3. Detection circuit malfunction

  What to do

  1. Check the utility frequency on the inverter terminal 2. Check country setting 3. Check the detection circuit inside the inverter

• E02warningCall your installer

  Manual (PDF)

  Under Frequency

  Likely cause

  1. Actual utility frequency is lower than the UFR setting 2. Incorrect country or Grid setting 3. Detection circuit malfunction

  What to do

  1. Check the utility frequency on the inverter terminal 2. Check country & Grid setting 3. Check the detection circuit inside the inverter

• E10warningCall your installer

  Manual (PDF)

  Utility Voltage High

  Likely cause

  1. Actual utility voltage is higher than the UVR setting 2. Incorrect country or Grid setting 3. Detection circuit malfunction

  What to do

  1. Measure the utility AC voltage to the inverter terminal 2. Check country & Grid setting 3. Check the detection circuit inside the inverter

• E11warningCall your installer

  Manual (PDF)

  Utility Voltage Low

  Likely cause

  1. Actual utility voltage is lower than the OVR setting 2. Incorrect country or Grid setting 3. Detection circuit malfunction

  What to do

  1. Measure the utility AC voltage to the inverter terminal 2. Check country & Grid setting 3. Check the detection circuit inside the inverter

• E13warningCall your installer

  Manual (PDF)

  Slow OVR

  Likely cause

  1. Actual utility voltage is over than the OVR setting 2. Incorrect country or Grid setting 3. Detection circuit malfunction

  What to do

  1. Check the utility voltage on the inverter terminal 2. Check country & Grid setting 3. Check the detection circuit inside the inverter

• E26warningCall your installer

  Manual (PDF)

  Slow OFR

  Likely cause

  1. Actual utility frequency is over the OFR setting 2. Incorrect country or grid setting 3. Detection circuit malfunction

  What to do

  1. Check the utility frequency on the inverter terminal 2. Check country setting 3. Check the detection circuit inside the inverter

• E27warningCall your installer

  Manual (PDF)

  Slow UFR

  Likely cause

  1. Actual utility frequency is under the UFR setting 2. Incorrect country or Grid setting 3. Detection circuit malfunction

  What to do

  1. Check the utility frequency on the inverter terminal 2. Check country & Grid setting 3. Check the detection circuit inside the inverter

• E28warningCall your installer

  Manual (PDF)

  Slow UVR

  Likely cause

  1. Actual utility voltage is under the UVR setting 2. Incorrect country or Grid setting 3. Detection circuit malfunction

  What to do

  1. Check the utility voltage on the inverter terminal 2. Check country & Grid setting 3. Check the detection circuit inside the inverter

• F56warningCall your installer

  Manual (PDF)

  HW Incompatibility

  Likely cause

  HW power rating incorrect

  What to do

  Check comm. HW power rating info.