Fault

06

PV relay voltage abnormal.

6 Devices that report this code

What does the 06 error code mean?

06 on a Felicity unit indicates: PV relay voltage abnormal.. It is a fault-severity event that can appear on 6 different devices in the Felicity catalog. The same code may have slightly different recommended fixes depending on the device — the per-device sections below show the exact wording from each device's official manual.

This is a fault-severity code

Fault codes stop normal operation but the unit may attempt to recover. Common causes are out-of-range conditions (voltage, current, temperature) that require checking inputs and outputs before restart.

What triggers this code

06 is triggered when the unit's protection or monitoring logic detects the specific condition described above. The exact trigger depends on the device — see the per-device sections for the official manual entry for each.

06PV relay voltage abnormal.Fault
Description

The PV relay voltage is abnormal.

Recommended fix

Internal components failed. Restart the unit, if the error persists, contact the repair center.

Source:ICM.pdf · page 13
06High Discharging Current.Warning
Description

Discharging current above safe limit.

Cause

Excessive load current draw from the battery.

Recommended fix

Reduce discharging current.

Source:LUX-X-96050HG01-Lithium-Battery-User-Guide.pdf · page 21
06High Discharging Current.Warning
Description

Discharging current exceeded the upper threshold.

Recommended fix

Reduce discharging current.

Source:LUX-Y-48100HG01-Lithium-Battery-User-Guide.pdf · page 20
06High Discharging Current.Fault
Description

High Discharging Current.

Source:LUX-Y-48100HG01MN User manual 358-S010025-03 0325(V2.0).pdf · page 27
06Battery temperature is too low.Warning
Description

Detected battery temperature is below the safe charging range.

Cause

Battery ambient temperature is too low, or remote temperature sensor (RTS) is faulty, disconnected, or reporting incorrect values.

Recommended fix

1. Check your remote temperature sensor and your battery ambient temperature. 2. if the problem remains, please contact your installer.

Source:felicitysolar SCCM-III MPPT Solar Charge Controller User Guide.pdf · page 18
06PV current sensor failed.Fault
Description

PV current sensor failed.

Recommended fix

Restart the unit, if the error persists, contact the repair center.

Source:T-REX-3_3.6_4_4.6_5_6KLP1G01-hybrid-inverter-user-guide-English.pdf · page 37

Frequently asked about 06

What is the 06 error on Felicity?
06 on a Felicity unit means: PV relay voltage abnormal.. It can appear on 6 different devices in the Felicity catalog. The cause and recommended fix are listed for each device on this page.
Can I clear the 06 code myself?
It depends on the severity. Warning-level codes can usually be cleared by following the recommended fix. Fault and critical codes often require checking the source condition first; if the code returns immediately after restart, escalate to authorized service.
Is the 06 fix the same on every device?
The cause is consistent — it's the same protection logic. The exact fix wording can differ per device because each official manual addresses model-specific context (input ranges, parallel-config notes, firmware revisions). Use the per-device section that matches your unit.
Where does this information come from?
Every entry is sourced directly from the official Felicity user manual for the affected device. The "Source" line at the bottom of each device's section shows the manual filename and page number.

Compiled from official Felicity user manuals. Always consult your device manual and a qualified technician before performing repairs.