Homage Inverter Error Codes List: Troubleshooting Faults and Warnings
Updated 6 September 2026 · By SolarNevs Research Desk, Dealer surveys + verified sources · 2 sources · Method ↗
Key Takeaways
- The most common Homage inverter errors are due to overload, battery issues, or poor ventilation.
- Always start by power cycling the inverter and checking all external connections. WARNING: Before tightening or disconnecting terminals, kill power first (isolate battery and AC mains) and use an insulated tool, because a metal tool (like a spanner) bridging terminals will short-circuit a battery bank that delivers hundreds of amps, causing severe burns or an explosion; wait at least 5 minutes for internal capacitor discharge before servicing.
- Internal component failures, indicated by specific fault codes, require professional service.
- Never open the inverter casing or attempt internal repairs yourself, as this can void the warranty and expose you to dangerous voltages.
What do Homage inverter error codes mean?
Homage inverters, a popular choice in Pakistan, use different methods to signal problems depending on their series. Modern Bolt series hybrid inverters display specific digital fault codes (e.g., Fault 07) and warning codes on their LCD screens. Classic standalone UPS models, such as the Vertex, Hexa, or Octa series, use a combination of flashing LEDs and distinct audible beep patterns to communicate issues.
Understanding these codes and patterns is the first step in diagnosing and resolving common inverter problems, from simple overloads to more complex internal faults. For a broader understanding of inverter issues, consult our general guide on inverter error code glossary.
Diagnosing Homage Inverter Faults
When your Homage inverter signals an error, follow these general diagnostic steps before consulting the specific code tables:
- Power Cycle the Inverter: Turn the inverter OFF, wait 30 seconds, then turn it back ON. This can clear temporary glitches.
- Check All Connections: Ensure AC input, AC output, and DC battery terminals are securely fastened. Loose connections can cause voltage drops or intermittent faults. **WARNING: Before tightening or disconnecting terminals, kill power first (isolate battery and AC mains) and use an insulated tool, because a metal tool (like a spanner) bridging terminals will short-circuit a battery bank that delivers hundreds of amps, causing severe burns or an explosion; wait at least 5 minutes for internal capacitor discharge before servicing.**
- Inspect for Overload: Disconnect all non-essential loads. If the error clears, reconnect appliances one by one to identify the problematic device.
- Verify Ventilation: Ensure the inverter has adequate clearance (at least 200 mm on sides, 500 mm on top) and that its cooling fans are not blocked by dust or debris.
- Check Battery Health: Use a multimeter to measure battery voltage. For tubular batteries, check electrolyte levels and specific gravity. A weak or deeply discharged battery can trigger various inverter faults.
- Consult the Manual: Always refer to your specific inverter model's manual for the most accurate and detailed troubleshooting steps.
Homage Inverter Error and Warning Code Tables
Homage inverters use two primary diagnostic systems based on their hardware platform.
A. Digital Hybrid / Bolt & TronDuo Fault & Warning Codes
These codes apply to the modern Bolt series (e.g., HBS-3217SCC, HBS-8017SCC) and TronDuo series (HTD-5013SCC) hybrid inverters, which are built on the Voltronic Power OEM platform.
Code | Type | Meaning / Fault Event | Trigger Condition & Diagnostics | Fix Direction / Recommended Action |
|---|---|---|---|---|
Fault 01 | Fault | Fan is locked when inverter is off | Internal cooling fan jammed, dust clogged, or tachometer signal disconnected during standby. | Clean dust/debris from fan housing; verify fan connector; replace 12V/24V cooling fan if motor burned out. Do not open the casing yourself, as internal capacitors hold up to 500 VDC and opening the unit voids the warranty; instead, have an authorized Homage service center perform the replacement. |
Fault 02 | Fault | Over temperature | Internal heatsink, transformer, or power semiconductor temperature exceeds thermal cutoff (>100 °C). | Ensure ≥200 mm side and ≥500 mm top clearance; clear air intake filters; reduce heavy continuous loads. |
Fault 03 | Fault | Battery voltage is too high | Battery bank voltage exceeds high DC cut-off threshold (e.g., >16.0 V on 12V, >33.0 V on 24V, >63.0 V on 48V). | Verify battery quantity and series wiring; test individual battery voltages; verify Program 26/27 charge voltage parameters. |
Fault 04 | Fault | Battery voltage is too low | Battery bank voltage collapsed below low DC cutoff limit (e.g., <21.0 V on 24V, <42.0 V on 48V). | Re-charge battery from WAPDA grid or solar PV; check for dead/shorted cells; test specific gravity of tubular electrolyte. |
Fault 05 | Fault | Output short circuited | Direct AC output short circuit detected or severe wiring bridge in distribution box. | Turn off AC output breaker immediately; inspect load wiring, neutral loops, and appliances for short circuits. |
Fault 06 | Fault | Output voltage is too high | Inverter AC output voltage deviates above safety threshold (>260 VAC). | Reduce connected capacitive/reactive load; power cycle inverter; if persistent, internal feedback control failed. |
Fault 07 | Fault | Overload time out | Connected load exceeds inverter rated capacity (≥110% load for 5s, or 105%–110% load for 10s). | Shed heavy inductive appliances (refrigerators, irons, motors); reset unit; enable overload bypass in Program 23. |
Fault 08 | Fault | Bus voltage is too high | High-voltage DC bus capacitor voltage exceeds safe operating limit (>500 VDC). | Restart inverter after grid/PV voltage stabilizes; if persistent, internal DC bus clamp circuit damaged. |
Fault 09 | Fault | Bus soft start failed | DC bus soft-start resistor or charging circuit failed to ramp up bus voltage smoothly upon power-up. | Power cycle inverter; check for severe PV surge or battery ground fault; internal hardware repair required. |
Fault 10 | Fault | PV over current | Solar panel array current exceeds maximum MPPT input rating (model-dependent: 27 A on HBS-4017SCC through HBS-8017SCC, 18 A on HBS-3217SCC — check your model's spec label). | Reconfigure PV string parallel combinations; ensure array short-circuit current is within inverter specs. |
Fault 51 | Fault | Over current or surge | Instantaneous current surge detected on inverter output bridge or DC power stage. | Disconnect heavy motor startup loads; restart unit; if fault does not clear, output MOSFET/IGBT damaged. |
Fault 52 | Fault | Bus voltage is too low | DC bus voltage collapsed under sudden heavy load step or severe battery voltage drop. | Check battery health; verify battery cable cross-section (e.g., ≥25 mm² for 24V 2400W); ensure battery terminal lugs are tight. |
Fault 53 | Fault | Inverter soft start failed | AC output bridge failed to ramp up AC output voltage cleanly at start-up. | Disconnect all AC loads during inverter startup; restart unit; if persistent, internal board service needed. |
Fault 55 | Fault | Over DC voltage in AC output | DC offset component detected in AC output waveform (> allowable threshold). | Disconnect loads and test output; internal output DC decoupling filter or transformer stage failure. |
Fault 56 | Fault | Battery connection is open / disconnected | Battery terminals disconnected, battery circuit breaker open, or battery sensing wire broken while running. | Check battery cables, terminal lugs, and DC battery breaker; verify battery fuse is intact. |
Fault 57 | Fault | Current sensor failed | Internal Hall current transducer or op-amp sensing circuit drift / failure. | Power cycle inverter; return to authorized Homage service center if current sensor error persists. |
Fault 58 | Fault | Output voltage is too low | Inverter AC output voltage drops below acceptable minimum threshold (<190 VAC). | Reduce connected load; check battery capacity; return for service if unloaded output voltage remains low. |
Fault 59 | Fault | PV voltage is beyond acceptable range | Solar PV string open-circuit voltage exceeds the model's maximum PV input limit — Bolt HBS series: Max VOC 500 VDC (MPPT 90-450 VDC on 48V units, 60-450 VDC on 24V units); TronDuo HTD-5013SCC: Max VOC 145 VDC (MPPT 60-115 VDC). | Reduce number of solar panels wired in series per string; recalculate array VOC for winter cold temperatures. |
Warning 01 | Warning | Fan is locked when inverter is on | Cooling fan blocked or clogged while inverter is actively operating (Beep 3x/sec). | Clear dust from fan housing immediately; verify fan spin; have the fan replaced by an authorized service center before a thermal trip occurs. |
Warning 02 | Warning | Over temperature | Inverter heatsink temperature elevated; approaching thermal derating threshold (No audible alarm). | Improve ventilation; clean filter sponge; ensure unit is not exposed to direct sunlight. |
Warning 03 | Warning | Battery is over-charged | Battery bank voltage exceeds standard charging curve ceiling (Beep 1x/sec). | Verify charging voltage set in Program 26/27; calibrate user battery parameters; check solar controller. |
Warning 04 | Warning | Low battery | Battery voltage approaching low DC cut-off threshold (Beep 1x/sec). | Allow solar/grid to charge battery bank; reduce non-critical DC/AC loads during power outage. |
Warning 07 | Warning | Overload | Connected load between 100% and 110% of rated capacity (Beep 1x every 0.5 sec). | Reduce connected appliances before the 10-second overload countdown trips into Fault 07. |
Warning 10 | Warning | Output power derating | Output power derated due to high temperature or low AC input voltage (<170 V) (Beep 2x every 3s). | Provide active cooling; adjust AC input range in Program 03 from UPS to Appliance mode (90–280 V). |
Warning 15 | Warning | PV energy is low | Solar panel generation insufficient to support load or charging (Beep 2x every 3s). | Normal at dawn/dusk/cloudy days; check for panel shading, heavy dust buildup, or blown DC string fuse. |
B. Classic Homage Standalone UPS LED & Audible Buzzer Alarm Patterns
These diagnostic patterns apply to classic simulated sine wave lines such as Vertex (HVS), Hexa (HEX), Octa (HEE), Neon (HNE), Falcon (HFE), Axiom (HAX), and Prime (HPE) series.
Audible Alarm / LED Status | Hardware State | Operational Meaning | Root Cause / Diagnostics | Fix Direction / Triage Step |
|---|---|---|---|---|
Continuous Loud Beep (Solid Tone) + Fault LED Solid Red | Overload Shutdown / Output Fault | Inverter has tripped and shut down AC output due to severe overload (>110%) or short circuit. | Connected load exceeds inverter capacity (e.g., iron/fridge connected during outage), or direct short on output circuit. | Turn power switch OFF immediately; disconnect all appliances; reset rear circuit breaker; power ON with zero load. |
Beep Once Every 0.5 Seconds + Fault LED Flashing Red | Overload Warning | Inverter is operating between 100% and 110% of rated capacity. | Connected load is pushing the inverter beyond continuous rating; countdown to shutdown is active. | Immediately turn off heavy appliances (fans, extra lights) before the unit trips into continuous-tone shutdown. |
Beep Once Every 1.0 Second + Battery LED Flashing | Low Battery Warning | Battery voltage is critically low (<10.8 V on 12V / <21.6 V on 24V); shutdown imminent. | Battery has discharged during extended load shedding; inverter is approaching the 10.2 V low-voltage cutoff. | Turn off all non-essential loads immediately to conserve backup; allow battery to recharge fully when WAPDA returns. |
Beep Once Every 4.0 Seconds + Inverter LED Solid Green | Normal Battery Backup Mode | Inverter is operating normally in backup mode running from battery during WAPDA load shedding. | Utility grid (WAPDA) is absent; inverter DC-to-AC conversion is active. | Normal operation. To silence the audible reminder on select models, press and hold the power/mute button for 3 seconds. |
Beep Twice Every 3.0 Seconds | High Temperature / Input Derating | Internal heat dissipation is insufficient or input voltage is low in Narrow mode. | Ambient temperature >40 °C in unventilated room, or dust buildup on internal heatsink/fan. | Improve ventilation; clean fan intake; switch rear DIP switch from Narrow to Wide mode. |
Rapid Beeping (4x/sec) + No Output Voltage | Internal MOSFET Failure / DC Bus Short | Power stage short circuit; inverter failed startup self-test. | Blown H-bridge MOSFETs, shorted transformer windings, or generator voltage spike damage. | Disconnect battery and WAPDA immediately; do not attempt forced restart; service center repair required. |
No Beep, No LED, Blank Display | Deep Discharge / Reverse Polarity / Blown Fuse | Inverter control board is completely unpowered. | Battery voltage <8.0 V (deep discharge), blown internal 40A / 80A DC blade fuse, or reverse battery connection. | Test battery open-circuit voltage with multimeter; inspect DC cable polarity; jump-charge battery externally if <9V. |
Common Troubleshooting Scenarios for Homage Inverters
Many error codes point to specific, recurring issues. Here are some common scenarios and where to find detailed solutions:
- Continuous Beeping (Overload): If your inverter is continuously beeping, especially during load shedding, it's likely an overload condition. This often means the connected load exceeds the inverter's capacity. For a detailed guide on identifying and resolving this, see our article on Homage UPS Overload Continuous Beeping Fix.
- Battery Not Charging: If your Homage inverter displays a low battery warning or fails to charge the battery, several factors could be at play, including deep discharge lockout or incorrect settings. Our guide on Homage Battery Not Charging provides comprehensive steps.
- No Output After Load Shedding: When the grid returns after load shedding, your inverter might not provide AC output. This can be due to low battery cutoff lockout or inrush current trips. Find solutions in our article on Homage Inverter No Output After Load Shedding.
- Incorrect Settings: Many errors can be prevented or resolved by correctly configuring your inverter's settings. This includes AC input range, charging current, and battery type. Refer to the Homage Inverter Settings Guide for detailed instructions on both DIP switch and LCD program menu adjustments.
Safety: Working with Homage Inverters
Always prioritize safety when troubleshooting your inverter. Electrical systems carry significant risks.
- Explosive Hydrogen Gas Hazard: Flooded tubular lead-acid batteries, commonly used with Homage inverters, emit flammable hydrogen gas during bulk and equalization charging (above 14.4V/cell). Ensure batteries are installed in a well-ventilated, shaded space away from any ignition sources like open flames or electrical switches that can produce sparks.
- High DC Bus Voltage Shock Hazard: Homage Bolt and TronDuo series inverters contain internal high-voltage capacitors that can store up to 500 VDC even after the power switch is turned off. Always switch off, isolate, and disconnect both the battery and AC mains, use insulated tools to prevent short-circuiting battery terminals that deliver hundreds of amps, then wait at least 5 minutes for internal components to discharge before attempting any work.
- DC Reverse Polarity Destruction: Connecting battery cables in reverse polarity (positive to negative) will instantly blow internal DC blade fuses and can cause severe damage to the inverter's primary input MOSFETs. Always verify battery polarity with a digital multimeter before connecting terminal lugs.
- Battery Acid Corrosion & PPE: When checking tubular battery electrolyte specific gravity or topping up distilled water, always wear safety glasses and rubber gloves. Neutralize any acid spills immediately with a mixture of baking soda and water.
When to call a technician instead
While many Homage inverter errors can be resolved with basic troubleshooting, some situations require professional intervention. You should call an authorized Homage service technician if:
- The inverter displays fault codes indicating internal component failure (e.g., Fault 08, 09, 53, 57 on Bolt series).
- The fault persists after you have followed all relevant troubleshooting steps.
- You observe rapid beeping (4x/sec) with no output voltage on classic models, suggesting an internal MOSFET failure or DC bus short.
- You are unsure about any step or uncomfortable working with electrical components.
- Attempting internal repairs can void your warranty, which is typically 1 to 2 years, and expose you to dangerous electrical hazards. For information on potential costs, see our guide on inverter repair cost in Pakistan. When in doubt, always consult a qualified professional. You can also refer to our guide on when to call a solar technician.
Frequently asked questions
What do Homage Bolt series error codes mean?
Homage Bolt series inverters, built on the Voltronic Power platform, display digital fault codes from 01 to 59 and warning codes from 01 to 32. These codes indicate specific issues like fan failures, over-temperature, or battery voltage problems, as detailed in the inverter's manual.
What does a continuous beep mean on a classic Homage UPS?
On classic Homage UPS models, a continuous loud beep with a solid red Fault LED indicates an overload shutdown or an output short circuit. The inverter has tripped because the connected load exceeded 110% of its rated capacity or a direct short was detected.
How do I fix a Homage inverter over-temperature error?
An over-temperature error (Fault 02 on Bolt series) means the internal temperature exceeds 100°C. For classic models, 'two beeps every 3 seconds' indicates 'High Temperature / Input Derating' due to insufficient heat dissipation or low input voltage. Ensure the inverter has at least 200 mm side and 500 mm top clearance, clear any air intake blockages, and reduce heavy continuous loads. Before clearing any intake blockage, switch off and isolate both the battery and AC mains and wait at least 5 minutes for internal capacitors to discharge; never open the casing yourself.
What is Homage Fault 03?
Homage Fault 03 indicates the battery voltage is too high, exceeding thresholds like >16.0 V on a 12V system, >33.0 V on 24V, or >63.0 V on 48V. This can be caused by incorrect battery wiring or misconfigured charge voltage settings (Program 26/27). For lead-acid batteries, these charge setpoints are typically referenced to 25°C.
When should I call a technician for an Homage inverter error?
You should call an authorized Homage service technician if the inverter displays internal component failure codes (e.g., Fault 08, 09, 53, 57), if a fault persists after basic troubleshooting, or if you suspect a severe electrical issue like a shorted MOSFET. Do not attempt internal repairs yourself, as this can void the warranty and pose a shock hazard.
References
- Homage.pk Official Brand Store & Portal — accessed 24 August 2026
- W11stop.com Homage UPS User Manual and Error Codes (Community Reported) — accessed 24 August 2026
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