Check Condenser Fan Circuit
refrigeration
Description
The CDCON contactor coil tested outside the normal 0.05 to 2.0 Amps (12 VDC) range; pretrip fails and shows “PRETRIP FAIL AND COM- PLETED”.
Activation Conditions
Normal draw for the CDCON contactor coil is 0.05 to 2.0 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 CDCON a. Inspect CDCON contactor coil 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 2.11. 2. Check CDCON Amp Draw - Check CDCON contactor coil amp draw. Use Component Test mode (Section 5.2.4) to test. Refer to Section 2.11 for amp values. View current draw in Component Test mode screen. 3. Check CDCON 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.