TP-6198 3/1526 Section 3 Troubleshooting
Troubleshooting Chart
Problem ReferenceCorrective ActionPossible Cause
Generator
set does not
crank,
continued
Blown fuse F2, relay
interface board (RIB),
continued
If fuse continues to blow and the previous step did not identify
the cause, check the continuity of leads FP and FN and the
leads from the P14 connector. Replace any bad leads. Use a
pin pusher, part #241918 (large) or #241919 (small) to remove
leads from the connector, if necessary. If replacing the leads
does not solve the problem, replace the RIB.
W/D
Section 4.6
Crank relay on relay
interface board (RIB)
Check connections to the RIB. Check for 12VDC to the RIB on
lead 71N.
Section 4.6
W/D
Check for a good ground connection (lead N) W/D
Check crank relay K2 operation (LED3). Replace the RIB if
relay does not operate.
Section 4.6
Generator set master
switch
Check connections to the master switch on the ADC 2100. Section 4.3
Section 5.13
Test function of switch. Section 5.13
Poor ground (--)
connection
Clean and retighten. —
Starter
Check starter connections. W/D
Rebuild or replace starter. Engine S/M
Controller Check controller connections and operation. Check for power
to the controller. Move generator set master switch to OFF/
RESET and then to RUN.
Section 4;
W/D
Cranks but
does not
start
No fuel Open (turn on) manual fuel valve. Check 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.
I/M
Fuel regulator/valve Check regulator/valve operation. I/M
Spark plugs or spark plug
connections
Check spark plug wires and connections. Replace or clean and
regap spark plugs.
O/M
Loose connection or open
circuit
Check for loose or open connections at the fuel valve (lead 70A)
and at the engine control module. Check controller/engine
wiring continuity.
W/D
Air cleaner clogged Clean or replace. O/M
Incorrect controller
configuration
Check for correct controller configuration parameters: unit
configuration (UC) and engine configuration (EC).
Section 4.9
Ignition system spark
control or ignition coil
Test and/or replace components. Engine S/M
Fuel select leads 65 and
70A leads incorrectly
connected or
disconnected
Connect for natural gas. Disconnect for LP. I/M
No engine rotation
sensed (check for an
overcrank fault shutdown)
Check for locked rotor. Section 5.4
Starts hard
Low battery voltage Check battery voltage and battery charger connections, power
supply, and operation.
O/M
Air cleaner clogged Replace element. O/M
Fuel mixture adjustment
incorrect
Adjust fuel valve. O/M
Fuel select leads 65 and
70A leads incorrectly
connected or
disconnected
Connect for natural gas. Disconnect for LP. I/M
Spark plug(s) Replace or regap spark plug(s). O/M
Engine S/M: Engine Service Manual I/M: Generator Set Installation Manual O/M: Generator Set Operation Manual
W/D: Wiring Diagram Manual
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