Rivacold HA Error Code
Maximum temperature alarm on Dixell controllers — temperature above the high-alarm threshold (a temperature alarm, not a pressure trip)
Source: Dixell/dixell_alarm_codes_compiled.txt
What does Rivacold HA mean?
On the Dixell XR/XW-family controllers fitted to many Rivacold units, HA is the maximum temperature alarm. When it fires, the alarm output switches ON while the other outputs are unchanged — it is a temperature alarm (the box is above the maximum-temperature alarm point), not a compressor shutdown.
Symptoms
- Display shows HA with the alarm output active
- Compressor and fan outputs unchanged — HA signals, it does not switch the other outputs
- Cabinet/room temperature reading sits above the alarm threshold
- Alarm clears once the temperature falls back inside the alarm band
Common causes
- Door openings, warm product load, or a failed door seal letting heat in
- Condenser fouling or a failed condenser fan reducing capacity
- Evaporator iced up or its fan failed
- Refrigerant-side fault preventing pull-down
- High-alarm threshold or delay set too tight for the application
Ask the AskWhiz AI about Rivacold HA
AskWhiz
online
Diagnostic steps
Confirm a real over-temperature
Read the controller's probe value. If the box genuinely is above threshold, work the refrigeration cause; if it reads normal, check the alarm threshold and differential parameters.
Rule out usage causes
Recent loading, propped doors, and long door-open times all trip HA without a fault. Let the unit pull down and see whether the alarm clears.
Check both coils
Clean a fouled condenser and confirm both the condenser and evaporator fans run; check the evaporator for ice and the defrost cycle.
Verify the alarm parameters
Confirm the high-alarm threshold and alarm delay suit the application before chasing a system fault — a tight threshold nuisance-trips HA on every defrost or door opening.
When to call a professional
If doors, load, airflow, and defrost are all good and the unit still cannot hold temperature below the alarm threshold, the refrigeration circuit (charge, metering, compressor capacity) needs a certified technician.
Stop searching through PDFs. Our AI assistant on WhatsApp is trained on official Rivacold documentation and can diagnose this fault code and guide you through the repair in minutes.
5 free questions per bot in your browser — no signup.
Other Rivacold Error Codes
High-temperature alarm — cabinet/room temperature above the alarm threshold
Low-temperature alarm — cabinet/room temperature below the alarm threshold
Temperature-probe fault — which probe E1 names depends on the fitted controller (probe 2/defrost on Carel easy; probe 1/S1 on other families)
Temperature-probe fault — which probe E2 names depends on the fitted controller (probe 3/condenser-product on Carel easy; probe 2/S2 on other families)
High discharge-pressure alarm — the controller stops the unit; manual or semi-automatic reset
Low suction/evaporation-pressure alarm — the unit stops when evaporation pressure falls below the threshold
Minimum temperature alarm on Dixell controllers — temperature below the low-alarm threshold
High temperature warning on Carel-controlled units — probe reading above the alarm threshold parameter
AskWhiz Playground
Test your diagnostic skills
Play a real HVAC service call in the AskWhiz Playground — real brands, real fault codes, no signup.
Play a real service call