AskWhiz
HA2Coreco

Coreco HA2

Dixell XW controller — condenser high-temperature alarm

Source: Coreco_1592027610-xw60lt-xw60lrt-gb-r10-13022012_termostatos.pdf

Want this fix in your inbox? Full HA2 guide + every Coreco code, printable, free.

What does Coreco HA2 mean?

On the Coreco controller (Dixell XW30/XW60/XW70), HA2 is the condenser high-temperature alarm: the condenser probe has exceeded the Au2 limit after the Ad2 delay. What happens to the outputs depends on the AC2 parameter (compressor may be switched off).

Symptoms

  • Display shows HA2
  • Condenser running hot
  • Compressor may switch off depending on AC2

Common causes

  • Dirty or blocked condenser
  • Restricted condenser airflow
  • Failed or weak condenser fan
  • High ambient temperature

Diagnostic steps

  1. 01

    Clean the condenser

    Clean the condenser coil and clear any airflow obstruction; HA2 means the condenser temperature exceeded the Au2 limit.

  2. 02

    Check the condenser fan

    Confirm the condenser fan runs and moves air.

  3. 03

    Review AC2/Au2/Ad2

    Verify the condenser-alarm parameters are set correctly for the unit.

Keep this fix — get it by email with every Coreco error code

A clean printable version of this Coreco HA2 guide + the full Coreco code pack (49 codes), straight to your inbox. Free.

I am a — required, one click

When to call a professional

If cleaning the condenser and confirming the fan does not clear HA2, have a qualified refrigeration technician check the fan and sealed system; this work is reserved for qualified personnel.

Don't want to DIY this? Open a service ticket on AskWhiz and get it handled — pay per ticket, no subscription.

Open a ticket — free account

Other Coreco error codes

E0

Control probe (probe 1) error — signal interrupted, short-circuited or incompatible probe

E1

Evaporator / defrost probe (probe 2) error — signal interrupted, short-circuited or incompatible probe

E2

Condenser / product probe (probe 3) error — signal interrupted, short-circuited or incompatible probe

IA

Immediate or delayed alarm from the multifunction digital input (external alarm)

dOr

Open-door alarm from the door-switch digital input

LO

Low-temperature alarm — measured temperature below set point by more than parameter AL

HI

High-temperature alarm — measured temperature above set point by more than parameter AH

EE

Unit parameter reading (data) error — saved configuration data error

EF

Operating parameter reading (data) error — manual reset

Ed

Defrost ended by timeout — last defrost stopped on maximum duration, not on temperature

dF

Defrost running — status message shown during a defrost cycle (not an alarm)

CHt

Dirty-condenser warning/alarm — pre-alarm (cht) between Ac-AE and Ac, then alarm (CHt) when Ac is exceeded and refrigeration stops (manual reset)

View all Coreco error codes →