Briggs & Stratton 40213, Service And Troubleshooting Manual

Page: 39 / 76

Service & Troubleshooting Guide - Home Generator System - Models 040213 and 040234 (15kW)
Section 2 - Troubleshooting Information
Page 39
2
Some areas of particular focus are shown in (Fig. 27).
Fig. 27 - Check Electrical Components
• Battery connections
• Generator grounds, wiring and connections
• Starter contactor
2. Inspect 15 Amp fuse
• Reinstall or replace.
If fuse was replaced:
• Reset fault code detection system ( See
“Resetting The Fault Code Detection System” on
page 20
).
• Attempt MANUAL start and observe system
operation.
3. Gain access to the CMA circuit board ( See
“Access To The CMA Board” on page 19 ). Make
sure all wires and connectors are attached to the
back of the CMA board (See Fig. 28).
Fig. 28 - Checking CMA Board Connections
4. Check the unit grounding cable (Fig. 29).
Fig. 29 - Check Grounding Cable
If electrical components are OK:
Test 8
Check Starter Contactor Signal
• Open the generator circuit breaker.
• Reset fault code detection system ( See
“Resetting The Fault Code Detection System” on
page 20
).
• Gain access to the starter contactor.
• Select AUTO at the SYSTEM switch
Push and hold
MANUAL-OVERIDE
and while the
engine start cycle is in progress:
• Measure for a voltage at the coil terminals of the
starter contactor (Fig. 30).
Fig. 30 - Measuring Coil Terminals Of Starter Contactor
NOTE
: Remember that the CMA only delivers
12VDC to the starter contactor for 15 seconds
and then rests for 15 seconds.
7-14VDC should be measured.