What does Eliwell E1 mean?

E1 indicates probe Pb1 (the thermostat/room temperature probe) has failed. The controller cannot read a valid temperature and switches to timed compressor control using the Ont and OFt duty-cycle parameters instead of regulation by measured temperature. The alarm icon stays on continuously until the fault is cleared.

What does Eliwell E3 mean?

E3 signals a fault on probe Pb3, typically the display or air temperature probe depending on controller configuration. When E3 is active, defrost cycle termination by temperature is lost; defrost ends by time-out instead. The alarm remains active until the probe fault is resolved or Pb3 is excluded in parameters.

What does Eliwell E2 mean?

E2 indicates a fault on probe Pb2, the evaporator temperature probe. With Pb2 failed, the controller loses evaporator temperature feedback, so defrost cycles can no longer terminate on evaporator temperature and will run to their maximum time-out duration.

How do I enter programming mode on an Eliwell EWRC controller?

To enter programming mode on the Eliwell EWRC series, press and hold SET for 5 seconds until 'Pr1' appears. Use UP/DOWN to scroll through parameters and SET to enter and confirm each parameter value. Exit programming mode by pressing SET repeatedly until the normal temperature display returns, or wait for the auto-exit timeout (typically 30-60 seconds of inactivity).

What is the correct procedure for replacing an Eliwell probe?

Power down the controller before replacing probes to prevent false alarms. Identify the probe type from the label (NTC 10kΩ at 25°C is most common for Eliwell). Route the new probe to the same location as the original — cabinet probe in the return air stream, defrost probe clamped to the evaporator coil. Re-enter programming mode after replacement and verify probe readings are stable.

How do I configure the Eliwell STD controller for medium temperature applications?

For medium temperature applications (+2 to +5°C), set the Eliwell STD controller as follows: SP (setpoint) = +3°C, Hy (differential/hysteresis) = 1°C, LS (minimum setpoint) = -5°C, US (maximum setpoint) = +10°C. For defrost, set dFt = 1 (electric), dtE = +8°C, and MdF = 30 minutes. Adjust alarm parameters (AH = 5°C, AL = -10°C) to suit the application.

What causes an Eliwell controller to show a flashing temperature display?

A flashing display on Eliwell controllers typically indicates an active alarm condition. The display alternates between the temperature reading and the alarm code. Check alarm history by pressing SET and DOWN simultaneously. Common causes of flashing display: probe fault (P1/P2), temperature alarm exceeded (AH/AL), or compressor protection timer active (unit recently powered on).

Quick Answer

Eliwell refrigeration controllers (ID Plus, IDNext, EWPC, EWCM, EWCB, EWRC, RTX-600) use E-codes for probe faults — E1–E7 are Pb1–Pb7 NTC / PTC failures, E10 is an RTC clock fault, E11–E15 cover expansion-valve and serial-probe faults — AH / HA1 / AL / AL1 / AL2 for high and low temperature alarms, and F1 for motor-overload trips on EWRC5000.

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What error codes does Eliwell display?

Pb1 probe error active Automatic Ont, OFt E2 Pb2 probe error active Automatic On

Pb3 probe error active Automatic Ont, OFt HA1 HIGH temperature alarm active Auto

, dAt PAn Panic alarm not active Automatic ALd leak detector alarm not active Au

E10

Clock alarm not active Automatic PA General pressure switch alarm not active Man

LA1

in folder AL · Relay on (if configured) · No effect on regulation · Record label

and QF2) · Motor overload protection terminals (QM1) Cleaning Do not use abrasiv

HA1

Meaning HIGH temperature alarm, refers to probe LA1 LOW temperature alarm, refer

displayed · check probe type (H00) operating range · check the probe wiring? · p

displayed · check probe type (H00) · check the probe wiring E6 Pb6 probe error (

displayed · alarm icon permanently on · check the probe type · check the probe w

· measured values are outside operating range · label E7 displayed · alarm icon

AL1

AH2 set in tA1. Value read by probe 1 · no effect on regulation · no effect on r

Common questions about Eliwell equipment

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