Multiquip Portable Generator DCA20SPXU2

Place the multimeter test leads across pins 1 and 2 on the ECU auto start module as shown in Figure 73.

Set the multimeter selection dial to the sound position and verify that there is continuity (beep!) between the pin 1 (BLACK/WHITE) and pin 2 (RED) wire leads on the ECU auto start module as referenced in Figure 73.

If the multimeter reads OPEN (no continuity or beep), replace the MPU sensor.

Sign off on the Mpu Continuity Test

Warning: This procedure requires trained personnel with PPE!

Remove the fuel pump relay from its base holder

Measure the continuity between the contact pins

Apply either 12 VDC or 24 VDC to the coil at pin 8 and apply a ground to pin 7

Measure the continuity between the contact pins after applying voltage

Reinstall the fuel pump relay back into its base holder or reconnect the wires

Check DC voltage across the relay coil, and pins 7 and 8 or pins 1 and 2

Check if the DC voltage is present at the relay coil along with a known good ground

NOTICE: Before performing the resistance test, the three yellow lead wires (Figure 37) must be disconnected from the rotating rectifier. If the reading indicates an open circuit the component may have to be replaced or repaired.

The exciter armature (Figure 37) consists of three yellow lead wires with no wire designation. These three wire leads are connected to the U, V and W terminals on the rotating rectifier.

Are the three yellow lead wires disconnected from the rotating rectifier?

Upload a photo of the disconnected wires

Enter the resistance reading for the U and V wires

Enter the resistance reading for the V and W wires

Enter the resistance reading for the U and W wires

Sign off on the resistance test

Cable ends, wire connectors and terminals, tighten and repair as needed

Generator end for signs of heat discoloration

Panel controls and breakers for signs of heat discoloration and that they are securely mounted

All gauges for proper operation during test run

Frequency and voltage, adjust as necessary

Sign off on the generator inspection

NOTICE: The GFCI receptacle is designed to interrupt power when a ground fault exists to prevent injuries and shock hazards. DO NOT use the GFCI receptacle if the test below fails. Consult a qualified electrician for repair or replacement of the GFCI receptacle. Test the GFCI receptacle at least once a month.

Start the generator as outlined in the start-up procedure in this manual.

Place a GFCI circuit breaker (Figure 63) in the ON position.

Verify that the status LED on the corresponding GFCI receptacle (Figure 63) is ON (GREEN).

Press the TEST button (Figure 65) on the GFCI receptacle and verify that the status LED turns OFF.

Press the RESET button (Figure 66) to restore power to the GFCI receptacle and verify that the status LED is ON (GREEN).

If the status LED (Figure 67) is flashing (RED), DO NOT use the GFCI receptacle and replace it immediately.

Sign off on the GFCI Method Test