Below is a table about AC Rittal error code which is accompanied by how to resolve the problem. This error code table can be used as a guide for products with this series
RITTAL AIR CONDITIONER PRODUCT SERIALS |
SK 3302.xxx |
SK 3302.3xx |
SK 3303.xxx |
SK 3304.xxx |
SK 3305.xxx |
SK 3328.xxx |
SK 3329.xxx |
SK 3332.xxx |
SK 3361.xxx |
SK 3366.xxx |
SK 3377.xxx |
Rittal Air Conditioner Error Code Table
Error Code In Display | Description | Possible cause | How to Fix it |
A01 | Enclosure door open | The Door open or door limit switch incorrectly positioned | Close door, position door limit switch correctly, check connection if necessary |
A02 | AC Internal temperature of enclosure too high | The Cooling capacity inadequate/unit undersized. Error as a consequence of messages A03 to A17. | Check cooling capacity |
A03 | About Filter monitoring | The Filter mat soiled | Clean or replace; |
reset the Comfort controller | |||
A04 | Ambient temperature too high/too low | The Ambient temperature outside of admissible operating range (+10°C to +60°C) | Raise or lower the ambient temperature |
(e.g. heat or ventilate the room) | |||
A05 | Icing hazard | The Operational display in case of icing hazard. Evaporator coil fan may be mechanically blocked, defective, or cold air outlet obstructed. | Set the enclosure interior temperature to |
a higher value. Check the evaporator fan; | |||
release or exchange if necessary. | |||
A06 | PSAH pressure-operated switch | The Ambient temperature too high | Lower the ambient temperature; |
reset the Comfort controller | |||
The Condenser soiled | Clean the condenser; | ||
reset the Comfort controller | |||
The Filter mat soiled | Clean or replace; | ||
reset the Comfort controller | |||
The Condenser fan defective | Replace; | ||
reset the Comfort controller | |||
The E-valve defective | Have the sensor repaired by a refrigeration engineer; reset the Comfort controller | ||
The PSAH pressure-operated switch defective | Have the switch replaced by a refrigeration engineer; reset the Comfort controller | ||
A07 | Evaporator coil | The Lack of coolant; sensor in front of or behind condenser defective. | Have the sensor repaired by a refrigeration engineer; reset the Comfort controller |
A08 | Condensate warning | The Condensate discharge kinked or blocked | Check condensate discharge; repair any kinks or blockages in the hose as necessary |
The Only in units with optional condensate evaporation | Check the evaporation unit, exchange if necessary | ||
A09 | Condenser fan | Maybe Blocked or defective | Clear the blockage; replace if necessary |
A10 | Evaporator fan | Maybe Blocked or defective | Clear the blockage; replace if necessary |
A11 | Compressor | Compressor overloaded | No action required; |
(internal winding protection) | unit switches back on automatically. | ||
Defective | Exchange by refrigeration engineer | ||
(check by measuring the winding resistance) | |||
A12 | Condenser temperature sensor | Open or short-circuit | Replace |
A13 | Ambient temperature sensor | Open or short-circuit | Replace |
A14 | Icing temperature sensor | Open or short-circuit | Replace |
A15 | Condensate warning temperature sensor | Open or short-circuit | Replace |
A16 | Internal temperature sensor | Open or short-circuit | Replace |
A17 | Phase monitoring | For three-phase devices only: Incorrect rotary field/phase absent | Exchange two phases |
A18 | EPROM error | New board obstructed | Software update needed (only following board installation with more recent software): |
Enter the programming level with Code 22; press button 1 and confirm with “Set” until “Acc” appears. Next, disconnect the unit from the mains and reconnect. | |||
A19 | LAN/Master-Slave | Master and slave not connected | Check setting and/or cable |
A20 | Voltage drop | Error display not shown | Event is stored in the log file |
OL | Overload | Ambient parameters or heat loss outside of the applicable limits | |
rSt | Reset | Manual device reset required, | |
see “6.2.9 Resetting the Comfort controller”, page 32. | |||
LH | Low heat | Minimal heat loss inside the enclosure | |
E0 | Display message | Connection problem between the display and the controller board | Reset: Switch power supply off, then switch on again after approx. 2 sec. |
Cable defective; connection loose | Exchange the boards |
If none of the above codes can help your problem, please leave a comment. We will help you find a solution to fix the error code on your AC.
Tags: #rittal ac unit #rittal air conditioner #rittal aircon error code #rittal panel cooler fault codes
iduy2 years ago
how to overcome a10 Evaporator fan error ?
I feel difficult can you help?
send solution via email
Hemanth Kumar1 year ago
What is the problem of OL
Ramon Lopez11 months ago
how to troubleshoot this code: Ambient parameters or heat loss outside of the applicable limits ( Overload)
ronald10 months ago
I check limit switch is ok still alarm A01 is blinking what should I do