CARE

Carel HF

High

MPXPRO — Type HF HACCP alarm - high temperature after power failure (blackout)

Carel HF: Type HF HACCP alarm - high temperature after power failure (blackout) This fault noticeably affects operation.

Possible causes

Power failure lasting more than 1 minute, temperature above AH threshold on power return
Insufficient insulation or door opened during the power failure

Check steps

Read HACCP alarm log (parameters HF to HF2): date, time, duration
Check power supply and UPS/backup solution, assess product

Affected parts

power supply
door gasket

Safety note

Food safety: assess affected product per HACCP procedure

Source: Carel resmi servis kilavuzu (bagimsiz cift-dogrulandi) — Carel MPXPRO User Manual +0300055EN rel.1.6, Table of Alarms (p.64: "HF – Type HF HACCP alarm") and HACCP Alarm Parameters section (p.66): Type HF alarms are generated following a power failure lasting longer than 1 minute; upon power restoration, if the temperature read by the probe set for parameter AA exceeds the…

Reviewed by Anıl Güzeldemir — in the refrigeration machine room since 2006, developer of Enthalio.

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