Facts About Generators
GeneratorsDirectoryCompareRepairEnginesControllersPartsManufacturersGuides
Search models or part #
Home› Troubleshooting›Generac 9344

Generac 9344 Troubleshooting

Generac 9344 troubleshooting: 23 fault codes and symptom-cause-remedy entries from the manufacturer's own service documentation.

Generac 9344 — full specs, parts & maintenance.

All Generac fault codes →

Troubleshooting

23

Fault codes

CodeMeaning
EST 1Ac OUTPUT VOLTAGE
TEST 2VOLTAGE REGULATOR LAMPS
TEST 3REPLACE VOLTAGE REGULATOR
TEST 4TEST EXCITATION CIRCUIT BREAKER
TEST 5TEST EXCITATION WINDING
TEST 6TEST THERMAL PROTECTOR
TEST 7TEST EXCITATION LEADS
TEST 8REGULATOR TEST & ADJUST
TEST 9CHECK SENSING LEADS TRANSFORMER POWER WINDINGS
TEST 10STATOR AC GOOD
TEST 11TEST Rotor Brushes AND Wires No. 1 & 4 BOOST
TEST 12CHECK FIELD
TEST 13CHECK SLIP RINGS 1 AND 4
TEST 14RECONNECT, REPAIR OR REPLACE BAD WIRE(S) OR PART(S)
TEST 15CHECK BOTH VOLTAGE AND FREQUENCY
TEST 16ADJUST ENGINE GOVERNOR
TEST 17CHECK VOLTAGE REGULATOR
TEST 18UNIT IS NOT OVERLOADED
TEST 19REPAIR ENGINE POWER
OCField boost voltage is available.

Symptoms & remedies

SymptomCauseRemedy
Engine won't crank.10 amp circuit breaker trioped.<br>14 amp fuse blown.<br>Loose, corroded or defective battery cables.<br>Defective engine Start/Stop switch.<br>Defective starter contactor.<br>Defective starter motor.1. Reset circuit breaker<br>2. Replace fuse.<br>3. Tighten, clean or replace battery cables as necessary.<br>4. Replace Start/Stop switch.<br>5. Replace contactor.<br>6. Replace starter motor.
Engine cranks but won't start.Vehicle fuel shutoff valve is closed.<br>Out of fuel.<br>Fuel soienoid (FS) is defectcive<br>Fuel pump (FP) is defective.<br>Open Wire #14 from Engine Control C.B.<br>Clogged fuel filter or fuel line.<br>Engine mechanical parts failure.<br>Spark plugs defective.1. Open valve.<br>2. Replenish fuel tank.<br>3. Refplace solenoid.<br>4. Repair or replace fuel pump.<br>5. Reconnect wire.<br>6. Replace if clogged.<br>7. Repair or replace parts.<br>8. Clean, regap or replace plugs.
Engine starts hard, runs rough.Flame arrestor (air

Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.

Common questions

Generac 9344: Engine won't crank — what causes it?

Documented causes: 10 amp circuit breaker trioped.<br>14 amp fuse blown.<br>Loose, corroded or defective battery cables.<br>Defective engine Start/Stop switch.<br>Defective starter contactor.<br>Defective starter motor.. See the table for the matching fixes.

Generac 9344: Engine cranks but won't start — what causes it?

Documented causes: Vehicle fuel shutoff valve is closed.<br>Out of fuel.<br>Fuel soienoid (FS) is defectcive<br>Fuel pump (FP) is defective.<br>Open Wire #14 from Engine Control C.B.<br>Clogged fuel filter or fuel line.<br>Engine mechanical parts failure.<br>Spark plugs defective.. See the table for the matching fixes.

Generac 9344: Engine starts hard, runs rough — what causes it?

Documented causes: Flame arrestor (air. See the table for the matching fixes.