Read the manual thoroughly and understand all of the instructions, cautions, and warnings before using this equipment. If any section of the manual is not understood, contact your nearest authorized dealer, or contact Generac Customer Service at 1-888-436-3722 (1-888-GENERAC), or www.generac.com with any questions or concerns.
Low oil pressure: Error code 1300
Environment
This article applies to error code 1300, LOW OIL PRESSURE, for Generac air-cooled home standby generators.
Note: The term "error code" is used interchangeably with 'alarm code,' 'fault code,' 'fault alarm' and similar terminology. Error code applies to all such terminology.
Overview
- Error code: 1300
- Displayed Alarm: LOW OIL PRESSURE
- Issue: The low oil pressure sensor has triggered a shutdown due to inadequate oil levels.
- Cause: The low oil pressure alarm is typically caused by low oil levels due to oil consumption, leaks, or lack of maintenance.
What can I do?
- Your options are limited beyond performing basic checks on components and verifying that everything appears normal. You can attempt to clear the alarm and manually restart the unit.
- Sometimes, clearing the alarm and attempting to restart the unit is all that is needed, as the alarm may be a one-time occurrence that does not indicate a persistent issue.
When should you contact a Generac independent Authorized Service Dealer (IASD)?
General troubleshooting
1 Allow the generator to cool
Before proceeding, ensure the generator has cooled for at least 30 minutes to avoid potential injury or inaccurate readings.
2. Check and refill oil
Confirm that oil dipstick is fully inserted, and that the oil fill cap, oil drain cap, and oil filter are hand-tightened. Rotate clockwise to tighten. (righty-tight, left-loose). If any of these components are not tightened securely, leaks can occur.
3. Check for oil leaks
Inspect the generator for any visible oil leaks and address them as necessary.
4. Clear the alarm and reset
Additional oil-related maintenance resources
Maintenance intervals and changing the oil
Oil FAQ
Generator Oil Filter and Drain Location
Oil Filter and Drain Location (10 kW):
Oil Filter and Drain Location (13–18 kW):
Oil Filter and Drain Location (20–26 kW):
Troubleshooting by scenario
Outage/utility power failure
Error occurs intermittently
Next steps: When troubleshooting works or fails
Troubleshooting worked
- If troubleshooting was successful, take note of the potential factors that may have contributed to the fault alarm.
- Considerations such as your run hours and upcoming scheduled maintenance intervals.
Troubleshooting failed
- If the issue remains unresolved after attempting the outlined checks and troubleshooting, contact a Generac IASD for diagnosis.
Working with a Generac IASD for diagnosis and repair
- Only a Generac IASD can submit warranty claims and perform warranty repairs.
- Leave the error code present on the unit so it can be properly diagnosed.
- Keep records of all maintenance performed.
- Note any situational factors or details related to the alarm occurrence; this information may help the technician diagnose the issue more effectively.
- How Can I Find a Generac Service Dealer in My Area?
Additional resources
