Carel Etc

Medium

ir33 / MPXPRO — Real-time clock fault (RTC).

Carel Etc: Real-time clock fault (RTC). This fault usually isn't an immediate stop, but should be checked soon.

Possible causes

RTC module/battery faulty.

Check steps

Reset time/date.
Check RTC/battery, replace controller if persists.

Affected parts

RTC / Batterie

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 'Etc' = 'real time clock fault', flashing icon, manual reset. Also body text line 6779: 'If set to 1 when the clock is not fitted, the "Etc" alarm is activated.'

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

Look up in Enthalio →

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