Free emergency standby generator monthly test procedure
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Free standby generator monthly test checklist (PDF-ready). Auto-start, transfer switch, engine monitoring and NFPA 110 / AS 2941 compliance. Download free.
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See the first part of the emergency standby generator monthly test procedure below. Download the full version above.
What is a emergency standby generator monthly test procedure?
A standby generator monthly test is a routine operational test performed every month on building emergency standby generators (typically diesel). It verifies that the generator will start automatically on mains failure, reach rated speed, run reliably for at least 30 minutes, and transfer power correctly via the automatic transfer switch. The monthly test is required by NFPA 110 (Emergency and Standby Power Systems) and AS 2941 (Fixed Fire Protection Installations) to ensure the generator is ready to provide emergency power when needed. Unlike an annual service (which involves replacing filters, oil and performing load testing), the monthly test is primarily a functional verification with fluid level checks and recording of operating parameters.
In Australia, standby generators protecting life safety systems in Class 2 to 9 buildings are subject to state and territory building regulations that reference NFPA 110 and AS 2941. A missed monthly test can void the compliance certificate, expose the building owner to liability and, most critically, leave occupants unprotected during a mains failure. MapTrack automates monthly test scheduling with reminders and digital checklists that capture all required data against the generator asset record.
The monthly test run is essential for preventing wet stacking, a condition where unburnt fuel accumulates in the exhaust system due to prolonged inactivity. Monthly testing also verifies that the battery maintains sufficient cranking power, the fuel system is free from contamination and the automatic transfer switch responds correctly to a simulated mains failure.
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Benefits of using this emergency standby generator monthly test procedure
- Reliability when it matters: monthly testing confirms the generator will start and transfer power automatically during a real mains failure, protecting life safety systems (fire pumps, emergency lighting, lifts).
- Early fault detection: checking oil pressure, coolant temperature, battery voltage and controller alarms each month catches developing issues before they cause a fail-to-start event.
- Prevents wet stacking: running the generator for 30 minutes at operating temperature prevents unburnt fuel from accumulating in the exhaust system, which degrades performance over time.
- Compliance: documented monthly test records demonstrate compliance with NFPA 110, AS 2941 and building authority requirements.
- Insurance protection: insurers may require evidence of monthly generator testing as a condition of coverage for business interruption or essential services.
- Reduced emergency costs: a monthly test costs nothing beyond labour and fuel. A generator failure during a real emergency can cost tens of thousands in damages, liability and lost revenue.
Benefits of digitising forms in MapTrack
When you digitise standby generator service procedures in MapTrack, you get:
- Field users can easily scan a QR code to complete a form on mobile. Unlimited users.
- Automatically get alerts when faults are identified.
- Link every form digitally as a PDF to the relevant asset, location or person.
- Receive a digital PDF copy with every submission to your email.
- Ability to share forms digitally.
- Build conditional logic (show or hide questions based on answers).
- Take pictures or attach photos. Not possible with a paper-based form.
- Electronic signatures.
- Edit forms later without reprinting.
- Restrict permissions (who can view, complete or approve).
- Build forms with AI (describe what you need and MapTrack suggests the form).
- Trigger work orders automatically when a fault is logged during an inspection.
- Track service intervals by hours, kilometres or calendar date in one place.
- Attach supplier invoices and parts receipts to each maintenance record.
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What to include in a emergency standby generator monthly test procedure
This emergency standby generator monthly test procedure covers 7 key areas:
- Start-up: start generator on automatic transfer signal (simulate mains failure, verify auto-start within 10 seconds), run at rated speed for minimum 30 minutes.
- Engine monitoring: check oil pressure, coolant temperature, battery voltage, record fuel tank level.
- Transfer switch: test automatic transfer switch (auto transfer and retransfer), test manual transfer switch.
- Load and performance: check load bank test results if exercised under load this month.
- Controller and alarms: verify all controller alarms (common fault, mains failure, fail to start, high temp, low oil).
- Exhaust and ancillaries: check exhaust system, block heater, battery charger, fuel day tank and transfer pump.
- Records: record hour meter reading, generator room temperature, sign test log.
How to use this emergency standby generator monthly test procedure
- Notify building management that a generator test is about to commence. Check that the generator room is clear and safe to enter.: Advise building management and security that a generator test will cause a brief power transfer. Confirm the generator room is free of obstructions, stored materials and any flammable substances near the exhaust outlet.
- Record the equipment details (make, model, rated output, voltage) and test date at the top of the form. Note the current hour meter reading.: Capture the generator make, model, serial number, rated output in kW, voltage configuration and the current hour meter reading. Compare the hour meter against the previous test to confirm the expected runtime has elapsed.
- Check that the block heater is operating (the engine should be warm). Check the battery charger float voltage. Record the fuel tank level and top up if not full.: The block heater should maintain the engine coolant at approximately 30 to 40 degrees Celsius. Verify the battery charger is in float mode at the correct voltage (typically 27.2V for a 24V system). Record the fuel level as a percentage and arrange topping up if below 90 percent.
- Simulate a mains failure to trigger the automatic transfer signal. Verify the generator starts automatically within 10 seconds and the transfer switch transfers load to the generator.: Open the mains supply breaker or use the controller test function to simulate a mains failure. Start a timer and verify the generator cranks, starts and reaches rated speed within 10 seconds. Confirm the automatic transfer switch transfers building load to the generator.
- Allow the generator to run at rated speed for a minimum of 30 minutes. During the run, check engine oil pressure, coolant temperature and battery voltage. Verify all readings are within specification.: Monitor oil pressure (typically 250 to 550 kPa at rated speed), coolant temperature (should stabilise between 70 and 90 degrees Celsius) and battery charge voltage. Record readings at the 10-minute and 30-minute marks. Listen for unusual noises or vibrations throughout the run.
- Verify all generator controller alarms are functioning: common fault, mains failure, fail to start, high temperature and low oil pressure. Check the exhaust system for leaks and ensure the rain cap is operating.: Review the alarm history on the controller to confirm each alarm type is configured and enabled. Visually inspect the exhaust system from the manifold to the outlet for soot deposits indicating leaks. Confirm the rain cap opens when the engine starts and closes on shutdown.
- Test the manual transfer switch operation. Restore mains power and verify the automatic transfer switch retransfers load back to mains.: Exercise the manual transfer switch by transferring load manually and then returning to automatic mode. Close the mains supply breaker and verify the automatic transfer switch retransfers building load back to mains within the programmed delay, typically 15 to 30 seconds.
- Record the hour meter reading, generator room temperature and any defects or abnormalities in the notes section. Set the next monthly test date and sign the test log.: Record the closing hour meter reading to confirm the test duration. Note the generator room ambient temperature. Document any faults, unusual observations or follow-up actions required. Set the next monthly test date and ensure the test log is signed by the technician and building manager.
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Back to download formHow often should you complete this service procedure?
Standby generators must be tested monthly per NFPA 110 and AS 2941. Each test involves starting the generator on an automatic transfer signal, running at rated speed for a minimum of 30 minutes, verifying engine monitoring parameters and testing the transfer switch. Annual services include a full engine service, alternator test, 2-hour full load test and safety shutdown tests.
Some building classifications or jurisdictions require weekly exercising of standby generators in addition to the documented monthly test. Always check the requirements for your specific building class and local authority guidelines. Monthly test logs must be maintained and available for inspection by the building authority.
Frequently asked questions
Applicable regulatory standards
This template aligns with the following regulations and standards:
- AS/NZS 3010 - Electrical Installations, Generating Sets (installation and maintenance requirements for standby generators)
- AS 2941 - Fixed Fire Protection Installations, Pumpset Systems (monthly testing requirements for fire service generator backup)
- NFPA 110 - Standard for Emergency and Standby Power Systems (monthly operational testing requirements)
- WHS Regulations 2011, Chapter 4 - Hazardous Work (electrical safety obligations for plant maintenance)
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