Briggs & Stratton PowerProtect 22kW Standby Generator with Symphony II Controller INSPECT Error Fix: Maintenance Due — Service Reminder

Error code INSPECT on the Briggs & Stratton PowerProtect 22kW Standby Generator with Symphony II Controller means: Maintenance Due — Service Reminder. The controller is displaying a scheduled maintenance reminder based on engine runtime hours. B&S standby generators require regular maintenance: oil and filter change every 200 hours or annually, air filter every 200 hours, spark plug every 400 hours. The exercise schedule (weekly auto-run) accumulates hours even when the generator is not powering the home. Reset the maintenance reminder on the controller after completing service. Use the oil type and filter specified in the owner's manual. Neglecting maintenance can cause the generator to fail when needed most — during an actual power outage.

The most successful fix is "Comprehensive Engine Tune-Up and Component Replacement" (medium difficulty, ~90 minutes). Estimated DIY cost: $40-$60. HomeMD has 2 community-ranked fixes for this error.

This error is rated low severity. It is generally not urgent and can often be resolved with a simple DIY fix.

Yes — the top-ranked community fix ("Comprehensive Engine Tune-Up and Component Replacement") is rated medium difficulty and takes about 90 minutes. Tools needed: Spark plug socket wrench, Screwdriver set, Oil filter wrench, Socket wrench.

DIY cost: $40-$60. Professional repair typically costs $200-$350. Many homeowners save money by trying the top-ranked community fix first.

The Briggs & Stratton PowerProtect 22kW Standby Generator with Symphony II Controller has 8 other known error codes, including: CHARGER-FAULT (Charger Fault — Battery Charger Malfunction), CONTROLLER-FAULT (Controller Fault — Internal Logic Error), HIGH-TEMP (High Temperature — Engine Overheating), LOW-BATTERY (Low Battery — Starter Battery Voltage Low), LOW-OIL-PRESSURE (Low Oil Pressure — Engine Protection Shutdown), and 3 more.

Error code INSPECT also appears on 2 other Briggs & Stratton models: 30675 12,000 Watt 20 HP 120/240V Standby Generator with Automatic Transfer Switch Ready, PowerProtect DX 26kW Standby Generator with Symphony II Controller. The fix may vary by model, so check each model's specific page for tailored repair steps.