GENERAL OPERATING/WARRANTY MANUAL FOR CHILLER, FREEZER AND HEATED DISPLAY CABINETS
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12. ERROR CODE:
12.1 EE: Memory is failure. (Press and to restore the default values, and then resupply the
power. If it still not work, please send back to factory for inspection).
12.2 E1: Indoor temp. sensor is failure. (Check whether the sensor is connected or replace the sensor).
12.3 E2: Please move evaporator sensor to proper location, re-supply power after sensor cooling down.
If error still happens, replace another one.
12.4 E3: Input voltage is too high. (Please check the input voltage).
12.5 E4: Input voltage is too low. (Please check input voltage).
12.6 UA: High temp. alarm, indoor temp ≥ high temp. alarm settings. (Please check if the compressor
is failure or the wiring is off).
12.7 LA: Low temp. alarm indoor temp ≤ low temp. alarm settings Please check if the
compressor contacts are melted).
12.8 When the above errors occur, the buzzer will beep (ON for 1 second / OFF for 1 second).
12.9 Only lighting, defog and buzzer can be set during the controller failure.
12.10 When alarms are activated, alarm contact will be ON.
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