Generac Power Systems PowerPact 7.5 kW Installation Guidelines

Troubleshooting
Installation Guidelines for 60 Hz PowerPact™ 35
Section 8: Troubleshooting
Troubleshooting Guide
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.
6. Auxiliary engine shutdown switch OPEN
(O).
1. Correct short circuit condition by replacing
7.5 A fuse in generator control panel.
2. Tighten, clean or replace as necessary.*
3. *See #2.
4. *See #2.
5. Charge or replace battery.
6. Set auxiliary engine shutdown switch to
CLOSED (I).
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. Cold weather condition
1. Replenish fuel / Turn on fuel valve.
2. *
4. Clean, re-gap or replace plug(s).
5. Reset valve clearance.
6. 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. Wrong fuel jet used
1. Check / replace air cleaner.
2. Clean, re-gap or replace plug(s).
3. Confirm 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. Change the fuel jet to the recommended part
for the fuel used.
Generator is set to OFF, but the
engine continues to run.
1. Controller wired incorrectly
2. Defective control panel.
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 util-
ity 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)
position.
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 Recommendations.
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