Generac Power Systems PowerPact 7.5 kW User Manual

Troubleshooting
Owner’s Manual for 7.5 kW PowerPact™ 23
Section 5: Troubleshooting
System Diagnosis
Problem Cause Correction
Engine will not crank. 1. Fuse blown.
2. Loose, corroded or defective battery cables.
3. Defective starter contact.
4. Defective starter motor.
5. Dead battery.
1. Correct short circuit condition by
replacing 7.5 Amp fuse in generator
control panel.
2. Tighten, clean or replace as necessary.*
3. *See #2.
4. *See #2.
5. Charge or replace battery.
Engine cranks but will
not start.
1. Out of fuel.
2. Defective fuel solenoid (FS).
3. Defective spark plug(s).
4. Valve clearance out of adjustment.
5. In cold weather condition.
1. Replenish fuel / Turn on fuel valve.
2. *
3. Clean, re-gap or replace plug(s).
4. Reset valve clearance.
5. Install recommended cold weather kit.
Engine starts hard and
runs rough.
1. Air cleaner plugged or damaged.
2. Defective spark plug(s).
3. Fuel pressure incorrect.
4. Fuel selector in wrong position.
1. Check / replace air cleaner.
2. Clean, re-gap or replace plug(s).
3. C
onfirm fuel pressure to regulator is 10–
12 in. water column (19-22 mm mercury)
for LP, and 5–7 in. water column (9-13
mm mercury) for natural gas.
4. Turn fuel conversion valve to correct
position.
Generator is set to
OFF, but the engine
continues to run.
1. Controller wired incorrectly
2. Defective control board.
1. Repair wiring.*
2. Replace control panel*
No AC output from
generator.
1. Main line circuit breaker is in the OFF (or
OPEN) position.
2. Generator internal failure.
1. Reset circuit breaker to ON (or
CLOSED).
2. *
No transfer to standby
after utility source
failure.
1. Main line circuit breaker is in the OFF (or
OPEN) position.
2. Defective transfer switch coil.
3. Defective transfer relay.
4. Transfer relay circuit open.
5. Defective control logic board.
1. Reset circuit breaker to ON (or
CLOSED).
2. *
3. *
4. *
5. *
Unit consumes large
amounts of oil.
1. Engine overfilled with oil.
2. Engine breather defective.
3. Improper type or viscosity of oil.
4. Damaged gasket, seal or hose.
1. Adjust oil to proper level.
2. *
3. See Engine Oil Requirements.
4. Check for oil leaks.
* Contact an independent authorized service dealer for assistance.

Generac Power Systems PowerPact 7.5 kW Specifications

General

Brand	Generac Power Systems
Model	PowerPact 7.5 kW
Category	Portable Generator
Language	English