Carrier 38EV024320 User Manual
Page 21
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ERROR CODE #8 - LOCKED COMPRESSOR ROTOR Reference Figure 23
REASON; OVERCURRENT OR UNDERCURRENT SITUATION OCCURS DURING FIRST 2 MINUTES OF COMPRESSOR
OPERATION.
POSSIBLE CAUSES; 1. Loose high voltage lead
2. -036 Models; scroll compressor running backwards
3. Failed compressor
4. Failed inverter
I 1
V.
Notes;
1) Inverter alarm may be monitored using DC voltmeter at@, in Figure. Alarm-on is 1VDC. Alarm may energize before
inverter trips.
Inverter trip LED (yellow) may be viewed by removing safety sheild from upper control box. View downward into box,
beyond contactor and under main control board at inverter board. See Figure 7 for LED location.
Power (red) LED should light whenever contactor closes.
Power and Trip LED’s will go off when contactor de-energizes.
2) When contactor energizes, inverter output voltage will increase gradually for about 30 seconds before leveling off.
Inverter may trip on low current at about 10 seconds.
as
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