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Recurring high pressure 295

Alarm 295 (or 346, 74) Recurring high pressure — Repeated high pressure alarms

NIBE · S2125 Air/Water Heat Pump

What does Recurring high pressure 295 mean?

This alarm indicates 5 repeated high pressure alarms within 4 hours, often due to poor heating medium flow, a clogged filter, or disruption in the refrigerant circuit.

Common Causes

  • Disruption in the refrigerant circuit.
  • Clogged particle filter.
  • Air or stoppage in the heating medium flow.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the indoor module/control module display for specific action instructions.

  2. 2

    Turn off the system and inspect the particle filter for clogging, then clean it if necessary.

  3. 3

    Bleed air from radiators/underfloor heating coils if the heating medium flow seems poor.

  4. 4

    If the alarm persists, contact a qualified technician to inspect the refrigerant circuit and heating medium flow.

Browse all codes in this manual (55)
Verified technical data. Last updated: April 2026

Related Faults

Communication fault to Inverter 254Alarm 254 (or 264, 203) Communication fault to Inverter — Inverter unpowered or brokenCompressor speed too low 354Alarm 354 (or 503, 186) Compressor speed too low — Inverter safety function reduces compressor speedContinuous light CPULED: CPU Continuous light — CPU is not running correctly
Source: NIBE S2125 Air/Water Heat Pump
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