What to do if Guardian ULTRA SOURCE 004451 engine runs good but bogs down when loads are connected?
- SSteven MccoySep 12, 2025
If your Guardian Portable Generator engine runs well but bogs down when you connect loads, here’s what to check: * First, disconnect any electrical load that might have a short circuit. * The generator may be overloaded. See “Don’t Overload the Generator” on page 9. * If these steps don't resolve the issue, it could be due to engine speed being too slow or a shorted generator circuit, in which case you should contact an Authorized Service Facility.



