Generac Power Systems 5410, 5412, 5411, 5413 TEST 41 - CHECK LPG FUEL SOLENOID, 49. - Fuel Solenoid

Section 7

DIAGNOSTIC TESTS

Results:

1.If Choke Plate is binding in Step 1, repair or replace binding Choke Plate. If Bi-Metal Heater Assembly tests good, go to Test 32.

2.If continuity was not measured in Step 3, repair or replace Wire 14 between the 4-tab Connector and Connector 3.

3.If the resistance value is incorrect in the Short to Ground step, or the Bi-Metal Heater Assembly does not function with voltage present, replace the Bi-Metal Heater Assembly.

TEST 41 – CHECK LPG FUEL SOLENOID

DISCUSSION:

If the LPG Fuel Solenoid (FS) fails to open, fuel will not be available to the engine and it will not start.

PROCEDURE:

1.Place one hand on the top of the LPG Fuel Solenoid. Activate the Fuel Prime Switch. You should be able to feel as well as hear the solenoid energize. If solenoid energizes discontinue testing.

2.Set VOM to measure resistance. Disconnect Wire 0 from the LPG Fuel Solenoid. Connect one meter test lead to Wire 0. Connect the other test lead to a clean frame ground. “Continuity” should be mea- sured. Reconnect Wire 0 to LPG shut off valve.

Short to Ground:

Set VOM to measure resistance. Disconnect Wire 14A from the LPG Fuel Solenoid. Connect one meter test lead to LPG Fuel Solenoid. terminal that Wire 14A was just removed from. Connect the other meter test lead to a clean frame ground. LPG Fuel Solenoid. Coil resistance of approximately 30-32 ohms Should be measured. Current draw of the LPG Fuel Solenoid at nominal voltage Is approximately 380 milliamps or 0.380 amps.

RESULTS:

1.If the solenoid energized in Step 1, proceed to Test 29.

2.If “Continuity” was not measured in Step 2 repair or replace Wire 0 between the LPG Fuel Solenoid (FS) and the Ground Terminal (GRD1) in the con- trol panel.

3.If “Continuity” was measured in Step 2, repair or replace the Fuel Solenoid (FS).

241

FUEL SOLENOID

0

FUEL REGULATOR

Figure 7-49. – Fuel Solenoid

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