62-11785 7–10
00023 A/C CURRENT OVER LIMIT
• ACTIVATION: The high voltage amp draw is over the limit shown in the following table for more than 10 sec-
onds.
CONDITION DRAW
Standby Cool or Pretrip 30A
Standby Heat 14A
Defrost 12A
Standby Null 8A
Standby Natural Defrost (when heaters are de-energized) 10A
• UNIT CONTROL: Refrigeration system shutdown and alarm with PSCON still energized.
• RESET CONDITION: Auto reset after 15 minutes or alarm may be manually reset via keypad or by turn-
ing the unit OFF, then back ON.
NOTE: Follow the steps below until a problem is found. Once a repair or correction has been made, the active
alarm should clear itself (see reset condition above). Operate the unit through the appropriate modes to see if
any active alarm occurs. Continue with the steps below as necessary.
CORRECTIVE ACTIONS:
1. Perform Pretrip
Clear Active Alarm list, then run Pretrip & check for any new alarms. Any active alarms must be cor-
rected and cleared before proceeding.
2. Check Configurations for Correct Maximum Amps Settings
a. Check STANDBY MAX GEN AMPS configuration setting. Setting should be 22 - 25 Amps.
Maximum recommended setting is 25 Amps. Minimum recommended setting is 22 Amps.
b. Check STARTUP MAX AMPS configuration setting. Setting should be 15 - 19 Amps. Maximum
recommended setting is 19 Amps.
3. Check For Electrical Failure In System
a. Check electrical motors. Visually inspect condenser fans and evaporator fan for damage to motor
or fan blade, or for foreign material obstructing the movement of the fan. Listen for noise caused
by failed bearing or motor obstruction.
b. Check for defective wiring. Check for discolored wiring at contactors and loose connections.
c. Check for defective contactor. Remove and replace any suspected contactor(s).
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