Elitech ECS-16

Single-probe controller for drink coolers with a 30 A compressor relay, optional defrost relay (otherwise off-cycle defrost) and a heating mode.

What it is: Beverage cooler controller

Key combo: Hold Set for 3 s for the user menu. Administrator settings sit behind the Po access code.

Error codes ↓
Enter service mode ↓
Parameters ↓
Change a setting ↓

Elitech ECS-16 error codes

Code	Meaning	Likely cause	How to reset
E1	Probe fault	Cabinet probe open or shorted	Output cycles on A1 (on) / A2 (off). A2 = 0 keeps it off. Clears once the probe reads.
dF	Defrost running	Timed defrost (relay or off-cycle)	Normal. Ends after d2.
dr	Factory values loaded	One-key recovery done	Information only.

How to enter service / parameter mode

Hold Set for 3 seconds: St shows. Press Set to view and adjust the set point.
For the full list, step to Po with the light key, press Set and enter the administrator access code from the manual, then press Set.
Press the light key: rd shows, meaning the administrator list is open. A wrong code just exits.

Parameter list

Code	What it does	Range	Default / typical
St	Set point	C3 to C4	4 °C
rd	Hysteresis	1 to 15 °C	3
C1	Probe offset	−10 to 10 °C	−1
C2	Output start delay	0 to 60 min	3
C3	Lowest set point	−50 °C to St	2
C4	Highest set point	St to 85 °C	10
A1	On time with probe fault	1 to 60 min	15
A2	Off time with probe fault (0 = stay off)	0 to 60 min	10
d1	Defrost interval (0 = none)	0 to 90 h	6
d2	Defrost time	1 to 90 min	20
d3	Display in defrost	0 live, 1 dF, 2 frozen reading	2
HC	Mode	0 cooling, 1 heating	0

How to change and save a setting

Pick a code with the light or rotate key and press Set.
Adjust with the same keys and press Set to return to the list.
Press the defrost (Rst) key, or wait 30 s, to save and exit.

Other useful key presses

Task	How
Manual defrost on/off	Hold the defrost key 3 s (d1 not 0)
Factory reset	Hold rotate 10 s: H0 shows. Choose H1 or H2 preset and press the defrost key; dr confirms

Notes

Defaults shown are the H1 preset. The H2 preset uses different values (for example St 3, rd 6, d1 12 h).
In heating mode set d1 to 0 so no defrost runs.
Whole-degree display only.

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: Elitech ECS-16 temperature controller user manual. Always check the manual for your exact model and software version.

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