Dixell XLR130 and XLR170

Wall or panel-mounted cool room panels (210×230 mm) that switch compressor, defrost, lights, alarm and, on the XLR170, evaporator fans. Optional real time clock for timed defrosts.

What it is: Cool room control panel. XLR130 has four relays; XLR170 has six, adding fans and hot gas defrost.

Key combo: Hold SET + DOWN for a few seconds for Pr1. Pick Pr2 and enter the service password for the full list.

Error codes ↓
Enter service mode ↓
Change a setting ↓

Dixell XLR130 and XLR170 error codes

Code	Meaning	Likely cause	How to reset
P1	Thermostat probe fault	Probe open, shorted, unplugged or wrong type (PbC)	Clears by itself a few seconds after the probe reads normally. Check wiring and PbC before replacing the probe. Alarm relay on; compressor runs on COn / COF.
P2	Evaporator probe fault	Probe open, shorted, unplugged or wrong type (PbC)	Clears by itself a few seconds after the probe reads normally. Check wiring and PbC before replacing the probe. Alarm relay on; defrost ends on time.
P3	Auxiliary probe fault	Probe open, shorted, unplugged or wrong type (PbC)	Clears by itself a few seconds after the probe reads normally. Check wiring and PbC before replacing the probe. Alarm relay on; other outputs unchanged.
HA	High temperature alarm	Room above ALU for longer than ALd	Alarm relay on. Clears when back inside the limit.
LA	Low temperature alarm	Room below ALL for longer than ALd	Alarm relay on. Clears when back inside the limit.
EE	Memory fault	Internal data check failed	Press any key to restart normal running. If it returns, replace the unit.
dA	Door switch alarm	Door open longer than the door delay	Clears when the door closes.
EAL	External alarm	Digital input active	Clears when the input resets.
BAL	Serious external alarm	Digital input active	Clears when the input resets.
PAL	Pressure switch alarm	Pressure switch tripped too often	Check the pressure switch circuit; see the manual for the reset.
PAn	Panic alarm (person trapped in room)	Panic input activated (i2F = PAn)	Buzzer, alarm relay and panic light on. Check the room immediately.
rtc	Clock alarm	Real time clock lost its time	Set the clock (models with clock only).

How to enter service / parameter mode

Hold SET + DOWN for a few seconds. The first Pr1 parameter shows.
Scroll to Pr2 and press SET. PAS flashes, then a flashing digit.
Enter the service password one digit at a time with UP / DOWN, pressing SET after each.
With the right password the full parameter list opens.

How to change and save a setting

Scroll with UP or DOWN to the parameter code.
Press SET to show its value.
Change it with UP or DOWN.
Press SET to store it and move to the next parameter.
To leave, press SET + UP or wait about 15 seconds. Values are kept either way.

Other useful key presses

Task	How
Manual defrost	Hold the defrost key for 3 s.
Fast freeze	Hold UP for 3 s.
Silence alarm	Press any key. With tbA = y the alarm relay also releases.

Notes

The manual's parameter table does not extract cleanly, so we have left the parameter list off this page. Use the manual for values.

For licensed technicians only. This equipment can involve mains voltage, high-voltage microwave circuits, gas and refrigerant. Isolate power (and gas) before opening panels, follow the manufacturer's manual and your local licensing rules (for example ARC refrigerant handling and electrical or gas licences). Wrong settings can spoil food or damage equipment. Check every value on the unit in front of you before changing it.

Based on: Dixell XLR130 and XLR170 installing and operating instructions. Always check the manual for your exact model and software version.

ServiceModes is not affiliated with Dixell or any other manufacturer. Written in our own words from the manufacturer's documentation.