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Service &
Troubleshooting
Guide - Home Generator
Systems
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Sf_a.
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Model 1938 (I OkW) Troubleshooting
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Engine Cranks
But Fails To Start:
Ensure that adequate fuel is available to operate the standby
system.
• Inspect the fuel supply tank to verify that the main supply
valve is open.
• Inspect fuel supply plumbing for any shut-off valves that
may be closed.
NOTE:
Fuel shut-off valves are often installed as a
discretionary
convenience to the owner. Therefore,
the number of shut-off valves may vary with the
circumstances
of each installation. Be sure to trace
the entire fuel supply system.
• Correct
any fuel supply problems.
• Reset the fault indication LED by selecting OFF at the
AUTO/OFF/MANUAL
switch for 30+ seconds.
• Select MANUAL
at the AUTO/OFF/MANUAL
switch and
observe system operation.
• • If no fuel supply discrepancies are present, and engine
cranks but fails to start:
• Remove the four access panels to the generator
unit.
Inspect the standby unit for any obvious broken or
corroded
electrical
connections.
Starting at the control
panel, visually inspect wiring and terminals associated with
the following
components:
- Oil Pressure and Oil Temperature
- # I Spark Plug Lead
• Remove the plug lead and check that the
plug is tight in the engine.
- Starter Contactor
- Fuel Solenoid
- Generator
and Engine Grounds
- Starter Motor
- # 2 Spark Plug Lead
• Remove the plug lead and check that the
plug is tight in the engine.
WARNING
damage to the system.
Gain access to the control
module assembly by removing
the CMA safety panel (Figure 8 on page 15).
- Terminal
board
- All component
connections
- 18-Pin connector
on the CMA board.
Repair and/or replace any damaged wiring or terminal
connections.
• Reset LED, attempt
MANUAL
start and observe system
operation.
•• If there are no obvious electrical faults, and the problem
persists:
Verify that fuel pressure is available to the fuel solenoid.
• Install a manometer,
as illustrated in figure 19.
should be measured.
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