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CEC approved: Mar 2026Report outdated info

Alpha ESS Co Ltd

SMILE-B5 VI (AS4777-2 2020)

5 kWSingle PhaseSolar Inverter

Rated power: 5 kW
Max efficiency: 95.0%
Phases: Single
MPPT trackers: 1
Warranty: 5 yr
Type: solar

Full specifications

Parsed from the manufacturer datasheet, install manual, and warranty document. Confirm against the linked PDFs before relying on a value for a quote or installation.

Power & output

Nominal power: 5 kW
Maximum power: 5 kW
Apparent power: 8 kVA
Phases: 1

Efficiency

Max efficiency: 95%
European efficiency: 95%
CEC-weighted efficiency: 95%

DC input & MPPT

MPPT trackers: 1
Max input voltage: 0 V
MPPT voltage min: 0 V
MPPT voltage max: 0 V
Max input current: 0 A

Battery & backup

Battery compatible: No
Backup capable: No
Continuous backup: 0 kW

Physical

Dimensions (H×W×D): 350 × 640 × 250 mm
Weight: 21 kg
IP rating: N/A
Cooling: N/A
Operating temperature: -10°C to 50°C

Technical specifications

Rated Power

5 kW

Max Efficiency

95.0%

Phases

Single Phase

Max Input Voltage

—

Min Input Voltage

—

Max Input Current

—

Output Voltage

—

Max Output Current

—

Country of Origin

Unknown

Series

SMILE-B5 Series

MPPT Trackers

European Efficiency

95.0%

Warranty

5 years

Weight

21 kg

Dimensions

640×350×250mm

IP Rating

N/A

Operating Temp

-10..50°C

Cooling

N/A

Features & compatibility

Battery Compatible

Backup Capable

ESM Compliant

Black Start

Grid Forming

Export Limiting

Remote Monitoring

CEC Approval Details

CEC Approved

5 Mar 2026

Approval Expiry

12 Oct 2027

Status

Active

Eligible for Rebates

Yes

About Alpha ESS Co Ltd

Years in AU Market

9 years

Australian Office

Yes

CEC-Approved Batteries

CEC-Approved Panels

Estimated price (installed)

$1,000–$2,000

Perth installed price estimate · medium confidence

Prices vary by installer, configuration, and site complexity. Get exact quotes via our installer matching.

Quick summary

5 kW rated power

95.0% efficiency

Single Phase

CEC Approved

WA Compliance (May 2026)

ESM CompliantCheck

Export LimitingNo

Remote MonitoringNo

From May 1, 2026, all new battery installations in WA require CSIP-AUS compliant inverters. Verify ESM status with your installer.

Perth installation note

Perth's high ambient temperatures (regularly 35°C+) can reduce inverter efficiency and trigger thermal throttling. For installations in direct sun or non-ventilated garages, consider inverters with active cooling and wide operating temperature ranges. All grid-connected installations require Western Power approval.

Alpha ESS Co Ltd batteries (6)Browse CEC-approved panels

Compare systems

Compare this inverter with batteries for a complete system analysis

Perth performance

Daily Yield21.3 kWh

Annual Yield7,756 kWh

Based on 5 PSH/day (BOM) with 15% system derate.

Australian office

Has local presence

Website

www.alpha-ess.com.au

9 years in Australian market

How it compares

The Alpha ESS Co Ltd SMILE-B5 VI (AS4777-2 2020) against the closest-power inverters from other brands.

Specification	Alpha ESS Co Ltd SMILE-B5 VI (AS4777-2 2020)Alpha ESS Co Ltd	8 Star Energy Pty Ltd FORCE 5.0HS (AS4777-2 2020)8 Star Energy Pty Ltd	8 Star Energy Pty Ltd Force 5.0HT+ (AS4777-2 2020)8 Star Energy Pty Ltd

Rated power?	5 kW	5 kW	5 kW
Max efficiency?	95.0%best value	0.0%	0.0%
MPPT trackers?	1	Not verified	Not verified

Phases	Single-phase	Single-phase	Three-phase
Type	Solar	Hybrid	Hybrid
Battery ready	No	Yes	Yes
Warranty	5 years	Not verified	Not verified

Specs from the CEC register and datasheet enrichment. Indicative — confirm exact figures with your installer.

Resources

Datasheet Warranty terms Installation guide

5-year inverter warranty

Alpha ESS Co Ltd SMILE-B5 VI (AS4777-2 2020)

This warranty covers the AlphaESS Residential Product Series for five years, ensuring replacement or repair for defects in materials or workmanship. It excludes issues arising from improper installation or environmental damage.

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: Invalid if products are installed by non-accredited installers, modified, or operated under improper conditions. Claims due to accidental damage, theft, vandalism, or exposure to inappropriate environmental conditions void the warranty.
Environment limits: The ambient temperature during the operation of the Products shall not fall below -10 °C or exceed 50 °C.

Read the official warranty document (PDF)

Fault & error codes — Alpha ESS Co Ltd SMILE-B5 VI (AS4777-2 2020)

From the install manual

41 documented

Showing 41 of 41. The official install manual is the authoritative source — always confirm before acting.

100007criticalCall your installer
Manual (PDF)
Insulation fault
Likely cause
Moisture or wet installation conditions affecting solar panels
What to do
Improve installation environment or disconnect connections for troubleshooting; contact customer service if issues persist.
100008criticalCall your installer
Manual (PDF)
GFCI fault
Likely cause
Possible insulation fault or ground fault
What to do
Check insulation and ground connections; contact customer service if issues persist.
100027criticalCall your installer
Manual (PDF)
Battery lose
Likely cause
Connection issue with battery wiring
What to do
Check battery wiring; ensure all connections are tight.
100038criticalCall your installer
Manual (PDF)
Output DC Over Current
Likely cause
Short-term grid voltage issue or inverter fault.
What to do
Contact service for further assistance.
100042criticalCall your installer
Manual (PDF)
Output Short Circuit
Likely cause
Shorted load on backup side.
What to do
Disconnect load; restart inverter if needed.
100043criticalCall your installer
Manual (PDF)
Output Overload
Likely cause
Backup load exceeds inverter capacity.
What to do
Reduce load; check connections.
100060criticalCall your installer
Manual (PDF)
DSP Self-Check Fail
Likely cause
Internal operation issue; likely requires service.
What to do
Contact customer service for repairs.
100123criticalCall your installer
Manual (PDF)
DSP Communication Failure
Likely cause
Loss of communication in the module.
What to do
Power off for 10 mins; contact service if unresolved.
110005criticalCall your installer
Manual (PDF)
Battery Stops Running Alarm
Likely cause
Battery operational issues.
What to do
Contact services immediately.
110006criticalCall your installer
Manual (PDF)
Over Temperature Alarm
Likely cause
Poor ventilation or direct sunlight exposure.
What to do
Check installation conditions and contact service if necessary.
110014criticalCall your installer
Manual (PDF)
PV Over Voltage
Likely cause
Faulty PV string configurations.
What to do
Check string configurations; adjust as necessary.
110024criticalCall your installer
Manual (PDF)
10min Grid Voltage Alarm
Likely cause
Average grid voltage exceeds limits.
What to do
Check grid voltage settings; contact service for guidance.
110027criticalCall your installer
Manual (PDF)
Line-Neutral Reverse Alarm
Likely cause
Improper wiring connections.
What to do
Check connections; correct as needed.
110029criticalCall your installer
Manual (PDF)
GFCI Alarm
Likely cause
Possible inverter fault; check GFCI system.
What to do
Contact service for further assistance.
110030criticalCall your installer
Manual (PDF)
Isolation Alarm
Likely cause
System requires a check for performance.
What to do
Monitor; contact service if unresolved.
110034criticalCall your installer
Manual (PDF)
Fan Abnormal Alarm
Likely cause
Fan performance check needed.
What to do
Inspect or replace fans; contact service if unsure.
100005warning
Manual (PDF)
BUS OVP1
Likely cause
Occasional overvoltage on bus
What to do
No action required if it resolves automatically; contact customer service if persistent.
100010warning
Manual (PDF)
Grid relay fault
Likely cause
Short-term grid instability
What to do
No action required if resolves automatically; contact customer service for frequent occurrences.
100025warningCall your installer
Manual (PDF)
Battery OVP
Likely cause
Excessive voltage in battery system
What to do
Check battery voltage; ensure wiring is secure.
100026warningCall your installer
Manual (PDF)
Battery Under Voltage
Likely cause
Battery voltage is below acceptable limits.
What to do
Verify battery status and check connections.
100030warning
Manual (PDF)
Battery discharge OCP
Likely cause
Over discharged battery
What to do
Reduce backup load; restart inverter if necessary.
100058warningCall your installer
Manual (PDF)
Arc Fault Circuit Interrupter (AFCI) Check Failure
Likely cause
Processor checks indicate an issue.
What to do
Restart the system; confirm fault persists.
100122warningCall your installer
Manual (PDF)
EEPROM Read/Write Failure
Likely cause
Remote upgrades or memory issues.
What to do
Contact service if issue persists.
100145warningCall your installer
Manual (PDF)
12V Auxiliary Power Fault
Likely cause
Occasional issue; may recover automatically.
What to do
Monitor; contact service if persistent.
110004warningCall your installer
Manual (PDF)
DC Power Alarm
Likely cause
Inverter in grid overvoltage state.
What to do
Check grid voltage settings; contact service for assistance.
110022warningCall your installer
Manual (PDF)
Grid Volt Alarm
Likely cause
Abnormal grid voltage
What to do
Check grid integrity; adjust parameters if persistent.
110036warningCall your installer
Manual (PDF)
Flash ID Alarm
Likely cause
System performance issue; may require inspection.
What to do
Contact service for confirmation.
110037warningCall your installer
Manual (PDF)
Read Flash Alarm
Likely cause
Possible issue needing service.
What to do
Contact service.
110039warningCall your installer
Manual (PDF)
Machine Type Alarm
Likely cause
Firmware does not match physical model.
What to do
Contact service for guidance.
110048warningCall your installer
Manual (PDF)
No PV Input Alarm
Likely cause
Circuit abnormalities; check connections.
What to do
Contact service for diagnosis.
110050warningCall your installer
Manual (PDF)
Output Power Limit Alarm
Likely cause
System needs assessment.
What to do
Restart if not resolved; contact service otherwise.
110059warningCall your installer
Manual (PDF)
Grid Waveform Abnormal Alarm
Likely cause
Short-term grid fluctuations.
What to do
Monitor performance; contact service if unresolved.
100012info
Manual (PDF)
PV Reverse
Likely cause
Incorrect connection of PV strings
What to do
Reconnect PV strings correctly.
100041info
Manual (PDF)
Output DC over voltage
Likely cause
Short-term grid instability affecting inverter
What to do
No action required if resolves automatically; contact customer service for persistent issues.
100046info
Manual (PDF)
DC Input Disturbance
Likely cause
Occasional issue; may recover automatically.
What to do
Monitor the situation.
100052info
Manual (PDF)
Backup Over Voltage
Likely cause
Occasional issue; may recover automatically.
What to do
No action required, monitor the situation.
100054info
Manual (PDF)
DC Bus Under Voltage
Likely cause
Occasional issue; may recover automatically.
What to do
Monitor the situation.
110021infoCall your installer
Manual (PDF)
Grid Loss Alarm
Likely cause
Short-term grid fluctuation; may recover automatically.
What to do
Monitor and check connections if persistent.
110023infoCall your installer
Manual (PDF)
Grid Frequency Alarm
Likely cause
Short-term grid fluctuation; may recover automatically.
What to do
Monitor for persistence; check connections.
110040info
Manual (PDF)
Inverter Voltage Low Alarm
Likely cause
Low light conditions; possibly normal.
What to do
Verify; otherwise monitor.
110049info
Manual (PDF)
Input Power Limit Alarm
Likely cause
Low light conditions; usually no action required.
What to do
Monitor, especially during operation.

Part of the Alpha ESS Co Ltd SMILE-B5 Series series

Compare every Alpha ESS Co Ltd SMILE-B5 Series variant side by side →

More Alpha ESS Co Ltd Inverters

SMILE-B3-PLUS (AS4777-2 2020)

3 kW · 1φ

SMILE-B3-PLUS II (AS4777-2 2020)

3 kW · 1φ

SMILE-B3-PLUS III (AS4777-2 2020)

3 kW · 1φ

SMILE-B3-PLUS IV (AS4777-2 2020)

3 kW · 1φ

SMILE-B3-PLUS V (AS4777-2 2020)

3 kW · 1φ

SMILE-B3-PLUS VI (AS4777-2 2020)

3 kW · 1φ

View all Alpha ESS Co Ltd inverters

More from Alpha ESS Co Ltd

Other CEC-approved products from Alpha ESS Co Ltd available in Australia.

Alpha ESS Co Ltd Batteries

M4856-P

2.8 kWh · LFP

SMILE-B3-PLUS (AS4777-2 2020)

4.79 kWh · LFP

SMILE-B3-PLUS II (AS4777-2 2020)

9.58 kWh · LFP

SMILE-B3-PLUS III (AS4777-2 2020)

14.36 kWh · LFP

SMILE-B3-PLUS IV (AS4777-2 2020)

19.15 kWh · LFP

SMILE-B3-PLUS V (AS4777-2 2020)

23.94 kWh · LFP

View all Alpha ESS Co Ltd batteries

View full Alpha ESS Co Ltd manufacturer profile

Want to take the next step?

Compare quotes from SAA-accredited local installers — you choose which to act on. No obligation, no pressure.

About this data

All inverter specifications are sourced from the CEC Approved Products Register. Specifications are provided as published by the CEC and may differ from manufacturer datasheets. Verify current specifications with the manufacturer or your installer before purchasing. Not all listed models may be currently available in Western Australia.

Back to inverter index

CEC approved: Mar 2026Report outdated info

Alpha ESS Co Ltd

SMILE-B5 VI (AS4777-2 2020)

5 kWSingle PhaseSolar Inverter

View datasheet (PDF)

Rated power: 5 kW
Max efficiency: 95.0%
Phases: Single
MPPT trackers: 1
Warranty: 5 yr
Type: solar

Full specifications

Parsed from the manufacturer datasheet, install manual, and warranty document. Confirm against the linked PDFs before relying on a value for a quote or installation.

Power & output

Nominal power: 5 kW
Maximum power: 5 kW
Apparent power: 8 kVA
Phases: 1

Efficiency

Max efficiency: 95%
European efficiency: 95%
CEC-weighted efficiency: 95%

DC input & MPPT

MPPT trackers: 1
Max input voltage: 0 V
MPPT voltage min: 0 V
MPPT voltage max: 0 V
Max input current: 0 A

Battery & backup

Battery compatible: No
Backup capable: No
Continuous backup: 0 kW

Physical

Dimensions (H×W×D): 350 × 640 × 250 mm
Weight: 21 kg
IP rating: N/A
Cooling: N/A
Operating temperature: -10°C to 50°C

Technical specifications

Rated Power

5 kW

Max Efficiency

95.0%

Phases

Single Phase

Max Input Voltage

—

Min Input Voltage

—

Max Input Current

—

Output Voltage

—

Max Output Current

—

Country of Origin

Unknown

Series

SMILE-B5 Series

MPPT Trackers

European Efficiency

95.0%

Warranty

5 years

Weight

21 kg

Dimensions

640×350×250mm

IP Rating

N/A

Operating Temp

-10..50°C

Cooling

N/A

Features & compatibility

Battery Compatible

Backup Capable

ESM Compliant

Black Start

Grid Forming

Export Limiting

Remote Monitoring

CEC Approval Details

CEC Approved

5 Mar 2026

Approval Expiry

12 Oct 2027

Status

Active

Eligible for Rebates

Yes

About Alpha ESS Co Ltd

Years in AU Market

9 years

Australian Office

Yes

CEC-Approved Batteries

CEC-Approved Panels

Estimated price (installed)

$1,000–$2,000

Perth installed price estimate · medium confidence

Prices vary by installer, configuration, and site complexity. Get exact quotes via our installer matching.

Quick summary

5 kW rated power

95.0% efficiency

Single Phase

CEC Approved

WA Compliance (May 2026)

ESM CompliantCheck

Export LimitingNo

Remote MonitoringNo

From May 1, 2026, all new battery installations in WA require CSIP-AUS compliant inverters. Verify ESM status with your installer.

Perth installation note

Alpha ESS Co Ltd batteries (6)Browse CEC-approved panels

Compare systems

Compare this inverter with batteries for a complete system analysis

Perth performance

Daily Yield21.3 kWh

Annual Yield7,756 kWh

Based on 5 PSH/day (BOM) with 15% system derate.

Australian office

Has local presence

Website

www.alpha-ess.com.au

9 years in Australian market

How it compares

The Alpha ESS Co Ltd SMILE-B5 VI (AS4777-2 2020) against the closest-power inverters from other brands.

Specification	Alpha ESS Co Ltd SMILE-B5 VI (AS4777-2 2020)Alpha ESS Co Ltd	8 Star Energy Pty Ltd FORCE 5.0HS (AS4777-2 2020)8 Star Energy Pty Ltd	8 Star Energy Pty Ltd Force 5.0HT+ (AS4777-2 2020)8 Star Energy Pty Ltd

Rated power?	5 kW	5 kW	5 kW
Max efficiency?	95.0%best value	0.0%	0.0%
MPPT trackers?	1	Not verified	Not verified

Phases	Single-phase	Single-phase	Three-phase
Type	Solar	Hybrid	Hybrid
Battery ready	No	Yes	Yes
Warranty	5 years	Not verified	Not verified

Specs from the CEC register and datasheet enrichment. Indicative — confirm exact figures with your installer.

Resources

Datasheet Warranty terms Installation guide

5-year inverter warranty

Alpha ESS Co Ltd SMILE-B5 VI (AS4777-2 2020)

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: Invalid if products are installed by non-accredited installers, modified, or operated under improper conditions. Claims due to accidental damage, theft, vandalism, or exposure to inappropriate environmental conditions void the warranty.
Environment limits: The ambient temperature during the operation of the Products shall not fall below -10 °C or exceed 50 °C.

Read the official warranty document (PDF)

Fault & error codes — Alpha ESS Co Ltd SMILE-B5 VI (AS4777-2 2020)

From the install manual

41 documented

Showing 41 of 41. The official install manual is the authoritative source — always confirm before acting.

100007criticalCall your installer
Manual (PDF)
Insulation fault
Likely cause
Moisture or wet installation conditions affecting solar panels
What to do
Improve installation environment or disconnect connections for troubleshooting; contact customer service if issues persist.
100008criticalCall your installer
Manual (PDF)
GFCI fault
Likely cause
Possible insulation fault or ground fault
What to do
Check insulation and ground connections; contact customer service if issues persist.
100027criticalCall your installer
Manual (PDF)
Battery lose
Likely cause
Connection issue with battery wiring
What to do
Check battery wiring; ensure all connections are tight.
100038criticalCall your installer
Manual (PDF)
Output DC Over Current
Likely cause
Short-term grid voltage issue or inverter fault.
What to do
Contact service for further assistance.
100042criticalCall your installer
Manual (PDF)
Output Short Circuit
Likely cause
Shorted load on backup side.
What to do
Disconnect load; restart inverter if needed.
100043criticalCall your installer
Manual (PDF)
Output Overload
Likely cause
Backup load exceeds inverter capacity.
What to do
Reduce load; check connections.
100060criticalCall your installer
Manual (PDF)
DSP Self-Check Fail
Likely cause
Internal operation issue; likely requires service.
What to do
Contact customer service for repairs.
100123criticalCall your installer
Manual (PDF)
DSP Communication Failure
Likely cause
Loss of communication in the module.
What to do
Power off for 10 mins; contact service if unresolved.
110005criticalCall your installer
Manual (PDF)
Battery Stops Running Alarm
Likely cause
Battery operational issues.
What to do
Contact services immediately.
110006criticalCall your installer
Manual (PDF)
Over Temperature Alarm
Likely cause
Poor ventilation or direct sunlight exposure.
What to do
Check installation conditions and contact service if necessary.
110014criticalCall your installer
Manual (PDF)
PV Over Voltage
Likely cause
Faulty PV string configurations.
What to do
Check string configurations; adjust as necessary.
110024criticalCall your installer
Manual (PDF)
10min Grid Voltage Alarm
Likely cause
Average grid voltage exceeds limits.
What to do
Check grid voltage settings; contact service for guidance.
110027criticalCall your installer
Manual (PDF)
Line-Neutral Reverse Alarm
Likely cause
Improper wiring connections.
What to do
Check connections; correct as needed.
110029criticalCall your installer
Manual (PDF)
GFCI Alarm
Likely cause
Possible inverter fault; check GFCI system.
What to do
Contact service for further assistance.
110030criticalCall your installer
Manual (PDF)
Isolation Alarm
Likely cause
System requires a check for performance.
What to do
Monitor; contact service if unresolved.
110034criticalCall your installer
Manual (PDF)
Fan Abnormal Alarm
Likely cause
Fan performance check needed.
What to do
Inspect or replace fans; contact service if unsure.
100005warning
Manual (PDF)
BUS OVP1
Likely cause
Occasional overvoltage on bus
What to do
No action required if it resolves automatically; contact customer service if persistent.
100010warning
Manual (PDF)
Grid relay fault
Likely cause
Short-term grid instability
What to do
No action required if resolves automatically; contact customer service for frequent occurrences.
100025warningCall your installer
Manual (PDF)
Battery OVP
Likely cause
Excessive voltage in battery system
What to do
Check battery voltage; ensure wiring is secure.
100026warningCall your installer
Manual (PDF)
Battery Under Voltage
Likely cause
Battery voltage is below acceptable limits.
What to do
Verify battery status and check connections.
100030warning
Manual (PDF)
Battery discharge OCP
Likely cause
Over discharged battery
What to do
Reduce backup load; restart inverter if necessary.
100058warningCall your installer
Manual (PDF)
Arc Fault Circuit Interrupter (AFCI) Check Failure
Likely cause
Processor checks indicate an issue.
What to do
Restart the system; confirm fault persists.
100122warningCall your installer
Manual (PDF)
EEPROM Read/Write Failure
Likely cause
Remote upgrades or memory issues.
What to do
Contact service if issue persists.
100145warningCall your installer
Manual (PDF)
12V Auxiliary Power Fault
Likely cause
Occasional issue; may recover automatically.
What to do
Monitor; contact service if persistent.
110004warningCall your installer
Manual (PDF)
DC Power Alarm
Likely cause
Inverter in grid overvoltage state.
What to do
Check grid voltage settings; contact service for assistance.
110022warningCall your installer
Manual (PDF)
Grid Volt Alarm
Likely cause
Abnormal grid voltage
What to do
Check grid integrity; adjust parameters if persistent.
110036warningCall your installer
Manual (PDF)
Flash ID Alarm
Likely cause
System performance issue; may require inspection.
What to do
Contact service for confirmation.
110037warningCall your installer
Manual (PDF)
Read Flash Alarm
Likely cause
Possible issue needing service.
What to do
Contact service.
110039warningCall your installer
Manual (PDF)
Machine Type Alarm
Likely cause
Firmware does not match physical model.
What to do
Contact service for guidance.
110048warningCall your installer
Manual (PDF)
No PV Input Alarm
Likely cause
Circuit abnormalities; check connections.
What to do
Contact service for diagnosis.
110050warningCall your installer
Manual (PDF)
Output Power Limit Alarm
Likely cause
System needs assessment.
What to do
Restart if not resolved; contact service otherwise.
110059warningCall your installer
Manual (PDF)
Grid Waveform Abnormal Alarm
Likely cause
Short-term grid fluctuations.
What to do
Monitor performance; contact service if unresolved.
100012info
Manual (PDF)
PV Reverse
Likely cause
Incorrect connection of PV strings
What to do
Reconnect PV strings correctly.
100041info
Manual (PDF)
Output DC over voltage
Likely cause
Short-term grid instability affecting inverter
What to do
No action required if resolves automatically; contact customer service for persistent issues.
100046info
Manual (PDF)
DC Input Disturbance
Likely cause
Occasional issue; may recover automatically.
What to do
Monitor the situation.
100052info
Manual (PDF)
Backup Over Voltage
Likely cause
Occasional issue; may recover automatically.
What to do
No action required, monitor the situation.
100054info
Manual (PDF)
DC Bus Under Voltage
Likely cause
Occasional issue; may recover automatically.
What to do
Monitor the situation.
110021infoCall your installer
Manual (PDF)
Grid Loss Alarm
Likely cause
Short-term grid fluctuation; may recover automatically.
What to do
Monitor and check connections if persistent.
110023infoCall your installer
Manual (PDF)
Grid Frequency Alarm
Likely cause
Short-term grid fluctuation; may recover automatically.
What to do
Monitor for persistence; check connections.
110040info
Manual (PDF)
Inverter Voltage Low Alarm
Likely cause
Low light conditions; possibly normal.
What to do
Verify; otherwise monitor.
110049info
Manual (PDF)
Input Power Limit Alarm
Likely cause
Low light conditions; usually no action required.
What to do
Monitor, especially during operation.

Part of the Alpha ESS Co Ltd SMILE-B5 Series series

Compare every Alpha ESS Co Ltd SMILE-B5 Series variant side by side →

More Alpha ESS Co Ltd Inverters

SMILE-B3-PLUS (AS4777-2 2020)

3 kW · 1φ

SMILE-B3-PLUS II (AS4777-2 2020)

3 kW · 1φ

SMILE-B3-PLUS III (AS4777-2 2020)

3 kW · 1φ

SMILE-B3-PLUS IV (AS4777-2 2020)

3 kW · 1φ

SMILE-B3-PLUS V (AS4777-2 2020)

3 kW · 1φ

SMILE-B3-PLUS VI (AS4777-2 2020)

3 kW · 1φ

View all Alpha ESS Co Ltd inverters

SMILE-B5 VI (AS4777-2 2020)

Full specifications

Power & output

Efficiency

DC input & MPPT

Battery & backup

Physical

Technical specifications

Features & compatibility

CEC Approval Details

About Alpha ESS Co Ltd

Estimated price (installed)

Quick summary

WA Compliance (May 2026)

Perth installation note

Related

Compare systems

Perth performance

How it compares

5-year inverter warranty

Fault & error codes — Alpha ESS Co Ltd SMILE-B5 VI (AS4777-2 2020)

More Alpha ESS Co Ltd Inverters

More from Alpha ESS Co Ltd

Alpha ESS Co Ltd Batteries

Want to take the next step?

SMILE-B5 VI (AS4777-2 2020)

Full specifications

Power & output

Efficiency

DC input & MPPT

Battery & backup

Physical

Technical specifications

Features & compatibility

CEC Approval Details

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WA Compliance (May 2026)

Perth installation note

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5-year inverter warranty

Fault & error codes — Alpha ESS Co Ltd SMILE-B5 VI (AS4777-2 2020)

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