TP-6805 8/15 81Section 5 Troubleshooting
Problem ReferenceCorrective ActionTestPossible Cause
Cranks but
does not
start
No fuel Verify that manual fuel valve is
open.
Check fuel supply tank (LP).
Open (turn on) manual fuel valve.
Contact fuel supplier to add fuel
to fuel supply tank (LP).
—
Insufficient fuel
pressure
Check fuel pressure to the
generator set. Verify adequate
fuel pressure and pipe size for the
generator set plus all other gas
appliances.
Contact fuel supplier to replace
fuel supply lines with larger pipe
and replace gas meter if fuel
pressure is insufficient.
Section 6.11.3
Fuel regulator/valve Check regulator/valve operation. Check regulator/valve operation. Section 6.11
Section 4
Weak battery Check the battery voltage.
Check battery charger
connections and utility power
connection to the generator set.
Recharge or replace battery.
Tighten loose connections.
O/M
W/D Section 8
Spark plugs or
spark plug
connections
Check spark plug wires and
connections.
Check spark plugs.
Tighten connections. Replace
spark plug wires if damaged.
Replace or clean and regap spark
plugs.
O/M
Loose connection
or open circuit
Check for loose or open
connection at the fuel valve (lead
70A) and at the engine spark
control module (leads IGN and
70B). Check controller/engine
wiring continuity.
Tighten connections.
Replace wiring if damaged.
Section 8
Air cleaner clogged Check for a dirty air cleaner
element.
Replace air cleaner element.
Check and replace air cleaner
element at the intervals shown in
the Service Schedule.
O/M
Incorrect controller
settings
Check the genset model setting. Enter the correct genset model
number setting. Engine model is
selected automatically based on
genset model.
Section 4.4
Ignition system
spark control or
ignition coil
Test according to instructions in
the engine service manual.
Adjust or replace components as
indicated in engine service
manual.
Engine S/M
Igntion timing leads
incorrectly
connected or
disconnected
Check ignition timing leads.
Check for loose connections.
Connect for natural gas.
Disconnect for LP.
Tighten connections.
Replace wiring if damaged.
Section 6.11.2
No engine rotation
sensed (check for
an overcrank or
locked rotor fault
shutdown)
Check the cranking circuit. Troubleshoot engine and
alternator.
Engine S/M
W/D = Wiring Diagram(s) (Section 8) S/S = Generator Set Specification Sheet O/M = Generator Set Operation Manual
I/M = Generator Set Installation Manual Engine S/M = Engine Service Manual
* RDC2 controller settings can be checked and adjusted using the controller user interface or using a personal computer running SiteTech
software. DC2 controller settings can only be changed using SiteTech.