C2 Check Evaporator Fan Motor
refrigeration
Description
The C2 evaporator fan motor check failed; pretrip fails and shows “PRETRIP FAIL AND COM- PLETED”.
Activation Conditions
See manual.
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. Determine in which test this alarm occurred a. Review active alarm list. Make a note of all alarms. b. Clear active alarm list. c. Restart and monitor Pretrip. Stop Pretrip during Test #3 by holding = Key for six seconds. d. Review active alarm list for Alarm 188. If alarm is present, follow steps 2 through 4 If alarm is not present, follow steps 5 through 8. 12 VDC CIRCUIT: 2. Check 2EVCON a. Inspect Evaporator Fan Motor contactor coil and wire connections. Verify no damage to coil. Verify no damage, moisture, or corrosion in connections. b. Check contactor coil resistance. Refer toSection 2.12. 3. Check 2EVCON Amp Draw - Check 2EVCON amp draw. Use Component Test mode (Section 5.2.4) to test. Refer to Section 2.12 for correct amp values. View current draw in Component Test mode screen. 4. Check 2EVCON Wiring - Inspect harness and control box connector pins and terminals. (See wiring schematic Section 8.) Verify no physical damage to harness. Verify no damage, moisture, or corrosion in connectors. Alarm continued on next page...