Generac iX 800 troubleshooting: 23 fault codes and symptom-cause-remedy entries from the manufacturer's own service documentation.
Generac iX 800 — full specs, parts & maintenance.
| Symptom | Cause | Remedy |
|---|---|---|
| No DC Output | TEST 6 – TEST DC COIL ON STATOR BAD - REPLACE STATOR | |
| Overload Light is On | IS THE LOAD CONNECTED? | DISCONNECT THE LOAD, THEN RESTART THE ENGINE AND CHECK THE AC OUTPUT AGAIN YES - GOOD NO - BAD - REPLACE COMPONENT |
| Engine Will Not Pull Start | TEST 7 – TEST RECOIL FUNCTION GOOD TEST 8 – TEST ENGINE FUNCTION BAD - REPLACE SWITCH BAD - REPLACE INVERTER MODULE | |
| Flex Power Feature is Not Responding | TEST 21 – TEST FLEX POWER SWITCH REPLACE CARBURETOR REPLACE FUEL PUMP REPAIR OR REPLACE STATOR REPLACE IGNITION COIL REPLACE LED MODULE | |
| Engine Will Not Start | TEST 17 – CHECK CHOKE ASSEMBLY TEST 16 – TEST FUEL SHUTOFF SWITCH TEST 14 – TEST TRIGGER ASSEMBLY TEST 15 – TEST IGNITION COIL TEST 20 – TEST IGNITION WINDING TEST 9 – CHECK SPARK TEST 10 – CHECK SPARK PLUG GOOD - GOOD BAD - REPLACE IGNITION COIL BAD - REPLACE STEPPER MOTOR BAD - REPLACE INVERTER MODULE BAD - REPLACE LED MODULE | |
| Engine Hunts / Erratic Idle or Will Not Come Up to Speed | IS THE UNIT PRODUCING AC POWER? IS THE ENGINE RUNNING ERRATICALLY? | BAD – ENGINE MISS APPARENT - REPLACE ENGINE BAD - REPLACE LED MODULE GOOD - REPLENISH OIL BAD |
| Unit Shuts Down for Low Oil | TEST 20 – TEST OIL LEVEL SWITCH CHECK OIL LEVEL GOOD | |
| If CONTINUITY is measured across the circuit breaker | Replace the DC circuit breaker and re-test | |
| If the meter indicated any reading other than what was specified | Replace the rectifier | |
| The resistance measured between the all tests points should be as follows: iX 1600 0.2 Ohms, iX 2000 0.3 Ohms | Replace the stator | |
| If the recoil did not perform as the observations are stated above | The engine could be seized. The recoil could have become detached from the flywheel. The recoil mechanism could be broken and not retracting properly. | |
| If the engine can not turn over freely with the spark plug removed | The engine has suffered some type of internal failure that has seized it and is inhibiting it from running | |
| Clean and regap or replace sparks plug as necessary. | Refer back to the Flow Chart. | |
| If fuel does not flow | Replace the fuel pump | |
| Compression is poor. | Loose cylinder head bolts. Failed cylinder head gasket. Burned valves or valve seats. Insufficient valve clearance. Warped cylinder head. Warped valve stem. Worn or broken piston ring(s). Worn or damaged cylinder bore. Broken connecting rod. Worn valve seats or valves. | |
| Meter reading is outside ± 5 ohms of the correct resistance in Test 14 – Test Ignition Trigger Assembly. | Replace trigger assembly. | |
| Incorrect values were measured in Steps 4 and 5 of Test 15 – Test Ignition Coil. | Inspect ignition coil connector for bad connection. If the connection is verified good, replace ignition coil. Inspect the ground connection on Pin 2 of the C2 connector going to the ignition coil. | |
| Meter read CONTINUITY when the shutoff valve was in either the open or closed position in Test 16 – Test Fuel Shutoff Switch. | Verify mechanical connection between the valve and the switch. If mechanical connection is good replace shutoff switch. | |
| Choke is not functioning correctly in Test 17 – Check Choke Assembly. | Replace the choke assembly. | |
| No AC Output | BAD REPAIR OR REPLACE COMPONENT, BAD REPAIR OR REPLACE WIRE | REPLACE INVERTER MODULE |
| No DC Output (iX Units Only) | REPLACE INVERTER MODULE | |
| Flex Power/Mode Feature is Not Responding | REPLACE INVERTER MODULE, REPLACE SWITCH, TEST FLEX POWER/MODE SWITCH | |
| LED Display INOP | Replace LED MODULE |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Documented causes: IS THE LOAD CONNECTED?. See the table for the matching fixes.
Documented causes: IS THE UNIT PRODUCING AC POWER? IS THE ENGINE RUNNING ERRATICALLY?. See the table for the matching fixes.
Documented causes: Loose cylinder head bolts. Failed cylinder head gasket. Burned valves or valve seats. Insufficient valve clearance. Warped cylinder head. Warped valve stem. Worn or broken piston ring(s). Worn or damaged cylinder bore. Broken connecting rod. Worn valve seats or valves.. See the table for the matching fixes.