(Fc_4); Engine Fails To Start; Troubleshooting Engine Start Failures; Test 1 - Briggs & Stratton 040213 Service And Troubleshooting Manual

Service & Troubleshooting Guide - Home Generator System - Models 040213 and 040234 (15kW)
Section 2 - Troubleshooting Information

(FC_4)

ENGINE FAILS TO START:

This is a feature of the CMA that prevents the standby
unit from damaging itself by continually attempting to
start in spite of a problem that is beyond the CMA's
ability to monitor. Whenever the unit is directed to start
(MANUAL or AUTO), the CMA delivers 12VDC from
to the starter contactor for 15 seconds. It
#3, Wire #56
then pauses for 15 seconds and repeats the attempt until
2 minutes of start time have accumulated.
During the 15 second starting attempt, the CMA
simultaneously delivers 12VDC from
the fuel solenoid and monitors
a minimum frequency signal. This frequency terminates
the delivery of start voltage to the starter contactor. If the
minimum frequency signal has not been sensed after
approximately 2 minutes of accumulative start time, the
CMA terminates the engine cranking cycle and displays
at the control panel.
"FC_4"
NOTE
: If so equipped, the CMA simultaneously
signals the remote LED to flash in a sequence of
four blinks and displays "Engine Failed To Start"
on the Statstation™ screen as well.
This directs the service technician to examine supporting
systems that could prevent the standby system from
operating.
For example:
• No Fuel
• Fuel Solenoid Failure
• Fuel Supply Discrepancies
• Failed Starter Motor
• Failed Starter Motor Connections
• Engine Component Failures
• Clogged Engine Air Filter
• Loose Spark Plugs
• Failed and/or Damaged Wiring
• Clogged atmospheric vent.
Pin
to
Pin #4, Wire #14
for
Wire #E1 and Wire #E2

Troubleshooting Engine Start Failures:

1. Reset the fault code detection system
"Resetting The Fault Code Detection System" on
page 20).
2. Set SYSTEM switch to
to start unit.
OVERIDE
Two possible conditions will exist;
Engine cranks but fails to start: (Start with test 1).
Engine fails to crank: (Start with test 7).
Engine Cranks But Fails To Start:

Test 1

Check Fuel Delivery System

Ensure that adequate fuel is available to operate the
standby system.
1. Inspect the fuel supply tank to verify that the main
supply valve is open.
2. 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.
3. Correct any fuel supply problems.
4. Reset the fault code detection system.
5. Select
MANUAL-OVERIDE
and observe system operation.
If no fuel supply discrepancies are present, and
engine cranks but fails to start:
Test 2

Visually Inspect Generator

1. Remove all three access doors to the generator
unit.
2. Inspect the standby unit for any obvious broken or
corroded electrical connections.
Starting at the control panel:
3. Remove the 15 Amp fuse.
4. Gain access to the CMA board
The CMA Board" on page
(See
and push
AUTO MANUAL-
at the SYSTEM switch
(See "Access To
19).
Page 35
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