AC Rittal error code

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

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