Rittal Air Conditioner Error Codes System messages are shown on the display screen of the Comfort controller via the displays A1 to A20 and E0. Rittal wall-mounted refrigeration units or cabinet air conditioners are the products that we pay special attention to in production. The company produces several lines that can surprise a large number of users, despite their specificity and narrowly targeted use.
Rittal Air Conditioner Error Code Solutions
Rittal AC Fault Indication and Fault Analysis:
Fault: 1
Cause: Cooling output too low (lack of coolant) Consequential fault or faults 2-7. Remedy: Check cooling output Carry out cooling service.
Fault: 2 Cause: Compressor overloaded (internal winding protection). Remedy: Unit will switch on automatically.
Fault: 3 Cause: Operational indication if risk of icing up exists. Remedy: Raise the setpoint value of the internal temperature of enclosure.
Fault: 4 Cause: Ambient temperature too high. Remedy: Unit’s specified range of application exceeded
Fault: 5 Cause: Blocked or defective. Remedy: Replace.
Fault: 6 Cause: Blocked or defective. Remedy: Replace.
Fault: 7
Cause: Filter mat contaminated. Remedy: Clean or replace.
Fault: 8 Cause: Cable break or short-circuit. Remedy: Replace.
Fault: 9 Cause: Incorrect field of rotation. Remedy: Reverse two phases.
Troubleshooting
Trouble: The unit does not switch on.
Possible Cause: No power supply.
Correction: Check the mains connection and the pre-fuse.
Trouble: The unit does not cool/heat adequately.
Possible Cause:
- The air circulation inside the enclosure is impaired.
- Ambient temperature too high/low.
- Filter equipment contaminated.
- Internal fan defective.
- External fan defective.
- The heat produced in the enclosure exceeds the cooling capacity of the Peltier climate control unit.
Correction:
- Check the air circulation inside the enclosure. Check, in particular, those components equipped with a fan. Check the free spaces above and below the main heat dissipation sources.
- Reduce the ambient temperature. Protect the unit from radiation heat caused by direct sunshine and hot surfaces.
- Check the filter and, if necessary, clean or replace.
- Replace unit.
- Replace unit.
- Reduce the heat loss.
Trouble: Condensation.
Possible Cause:
- Enclosure leakages.
- Internal temperature of enclosure set too low.
Correction:
- Check the enclosure for leaks (IP 54). Check, in particular, the cable entry points for leaks.
- Check the set enclosure internal temperature (factory setting: +35°C).