Operating instructions

TM 11574A-OI
C-1
APPENDIX C
TROUBLESHOOTING QUICK REFERENCE
YES NO
1. Will unit perform 5 sec. self-test? ___ ___
a. Check container ID # ___________ , b. Software # _________ , c Configuration _________
2. Enter a perishable range (CHILL) set point.
a. After self-test does the evaporator motor contactor (EF) energize? ___ ___
Current level leg 1 _____
Current level leg 2 _____
Current level leg 3 _____
b. 15 sec. later does the condenser motor contactor (CF) energize? ___ ___
Current level leg 1 _____
Current level leg 2 _____
Current level leg 3 _____
c. 15 sec. later does the compressor motor contactor (CH) energize? ___ ___
Current level leg 1 _____
Current level leg 2 _____
Current level leg 3 _____
3. Enter a frozen range set point.
a. Does the low speed evaporator motor contactor (ES) energize? ___ ___
Current level leg 1 _____
Current level leg 2 _____
Current level leg 3 _____
4. Access Code 41 (FOR SCROLL UNITS SKIP STEP 4, 6, & 7), select tIM and set to “1 min”, select
PCnt and set to “0”
a. Does suction pressure fall? ___ ___
b. Does compressor current fall? ___ ___
RETURN PCnt to “AUTO”
IF SUCTION PRESSURE and COMPRESSOR CURRENT DOES NOT FALL, CONTINUE TO STEP
6 & 7 AFTER COMPLETING STEP 5.
5. Change set point to its highest setting or initiate a manual defrost if possible.
a. Does the heater contactor (HR) energize? ___ ___
Current level leg 1 _____
Current level leg 2 _____
Current level leg 3 _____