Service & Troubleshooting Guide - Home Generator System - Models 040213 and 040234 (15kW)
Section 2 - Troubleshooting Information
Page 38
2
Test 5
Check Fuel Regulator
• Refer to Fig. 25 for the following procedure.
Fig. 25 - Testing The Fuel Regulator
The fuel regulator has two atmospheric vent holes
(Fig. 25) that balances diaphragm pressures.
• Install a 1/8 NPT barb fitting that has a 2 ft. length
of hose attached to it.
• Plug the other vent hole.
• Gently blow into the hose.
With the fuel solenoid energized (open), this gentle
pressure will allow fuel to pass through the regulator and
will be indicated on the manometer as a decrease in
pressure.
If no fuel flow is detected:
• Replace the fuel regulator.
If fuel flow is detected:
• See
“VANGUARD™ V-Twin OHV Repair Manual
(#272144).”
to determine the condition of the
gaseous fuel carburetor.
Test 6
Check Ignition Spark:
• Turn off the manual fuel valve to the standby
generator.
• With the spark plug installed, attach a
(#19368)
ignition tester to a spark plug lead and ground the
other end of the tester as shown in (Fig. 26).
Fig. 26 - Checking For Ignition Spark
• Set SYSTEM switch to
AUTO
and push
MANUAL-
OVERIDE
to crank unit.
If spark jumps the tester gaps:
You may assume the ignition system is functioning
properly.
NOTE:
The color of the spark does not matter -
only the fact that it jumps the gap.
If there is no spark:
• See
“VANGUARD™ V-Twin OHV Repair Manual
(#272144).”
to determine the proper method of
repairing an engine with no spark.
Engine Fails to Crank:
Test 7
Check Battery Components
1. Check the condition and electrical integrity of all
wires, connectors and cables throughout the
standby unit.
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Summary of Contents for 40213
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