Generac Power Systems Protector Series Installation Guidelines

Troubleshooting/Quick Reference Guide
Installation Guidelines For Spark-Ignited Stationary Generators 47
Section 8: Troubleshooting/Quick Reference Guide
Troubleshooting
Problem Cause Correction
Engine will not crank
Blown fuse.
Correct short circuit condition by replacing 7.5
amp fuse in generator control panel.
Loose, corroded, or faulty battery cables.
Tighten, clean, or replace as necessary. Con-
tact an IASD for assistance.
Faulty starter contact.
Faulty starter motor.
Discharged battery. Charge or replace battery.
One (or both) auxiliary shutdown switches is
OFF (O).
Set both auxiliary shutdown switches to ON (I).
Engine cranks but will not start
No fuel. Verify fuel source / turn on fuel shutoff valve.
Faulty fuel solenoid (FS). Contact an IASD for assistance.
Faulty spark plug(s). Clean, re-gap, or replace plug(s).
Valve lash out of adjustment. Reset valve lash.
Engine starts hard and runs
rough
Air cleaner plugged or damaged. Inspect / replace air cleaner.
Faulty spark plug(s). Clean, inspect gap, replace plug(s) if needed.
Incorrect fuel pressure.
Verify fuel pressure to regulator is 3.5–14 in
water column (0.87–3.48 kPa) for NG or 7–14
in water column (1.74–3.48 kPa) for LP gas.
Fuel selection in controller is incorrect. Program controller with correct fuel type.
Unit is set to OFF, but engine
continues to run
Controller wired incorrectly.
Contact an IASD for assistance.
Faulty control board.
No AC output from generator
MLCB (generator disconnect) is OFF
(OPEN).
Set MLCB (generator disconnect) to ON
(CLOSED).
Generator internal failure. Contact an IASD for assistance.
No transfer to standby after 
utility source failure
MLCB (generator disconnect) is OFF
(OPEN).
Set MLCB (generator disconnect) to ON
(CLOSED).
Faulty transfer switch coil.
Contact an IASD for assistance.
Faulty transfer relay.
Transfer relay circuit open.
Faulty control logic board.
Unit consumes large amounts
of oil
Excessive engine oil. Adjust oil to correct level.
Faulty engine breather. Contact an IASD for assistance.
Incorrect type or viscosity of oil.
See Engine Oil Recommendations in owner’s
manual.
Damaged gasket, seal, or hose. Inspect for oil leaks.

Generac Power Systems Protector Series Specifications

General

Brand	Generac Power Systems
Model	Protector Series
Category	Portable Generator
Language	English