Check Generator Contactor Circuit
electrical
Description
The GENCON coil tested outside the normal 0.0 to 1.0 Amps (12 VDC) range; pretrip fails and shows “PRETRIP FAIL AND COM- PLETED”.
Activation Conditions
Normal draw for the GENCON coil is 0.0 to 1.0 Amps (12 VDC). The circuit tests outside this range.
Unit Behavior
Engine and Electric Operation: Pretrip will fail and display “PRETRIP FAIL AND COM- PLETED”.
Reset Conditions
Auto Reset if Pretrip is started again, or alarm may be manually reset via keypad or by turning the unit off, then back on again.
Corrective Actions
1. Check GENCON a. Inspect GENCON contactor coils and wire connections. Verify there is no damage to coil, and no damage, moisture, or corrosion in connections. b. Check contactor coil resistance. Refer to Section 2.12. 2. Check GENCON Amp Draw a. Check GENCON contactor coils amp draw. Use Component Test mode (Section 5.2.4) to test. Refer to Section 2.12 for amp values. View current draw in Component Test mode screen. b. Listen for GENCON to pull in. If GENCON contactor pulls in, GENCON is OK. If GENCON contactor does not pull in, check for 12 VDC at GENCON coil. 12 VDC across A1 - A2 indicates defective GENCON coil. If no voltage, check GENCON wiring through PSCON and PSCON2 aux. c. Check 12 VDC across A1 - A2. Use Component Test mode (Section 5.2.4) to test. Refer to Section 2.12 for correct electrical values. 3. Check GENCON Wiring - Inspect harness and control box connector pins and terminals. (See wiring schematic Section 10.3) Verify there is no physical damage to harness, and no damage, moisture, or corrosion in connectors.