CARE

Carel EF

Medium

ir33 / MPXPRO — EEPROM error — functioning parameters.

Carel EF: EEPROM error — functioning parameters. This fault usually isn't an immediate stop, but should be checked soon.

Possible causes

EEPROM functioning parameters corrupt.

Check steps

Power cycle, reload parameters.
Replace controller if persists.

Affected parts

Regler

Safety note

Low voltage — work carefully.

Source: Carel resmi servis kılavuzu — CAREL ir33+ User Manual +030220441 rel.2.5, Tab. 8.a p.59: code 'EF' = 'E2prom error, operating parameters' (EEPROM error for operating/running parameters, distinct from 'EE' = unit/configuration parameters). App meaning 'EEPROM-Fehler Betriebsparameter' (EEPROM error operating p…

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Related fault codes

Control probe fault.rE Probe S1 fault.E1 Probe S2 (evaporator/defrost) fault.E2 Low temperature alarm (too cold).LO High temperature alarm (too warm).HI Data memory alarm (EEPROM) — controller shuts EE