Fault Codes / Eliwell / AL1

IDPlus 961/974 — Low temperature alarm on Pb1 (too cold).

Possible causes

• Wrong alarm limit/setpoint.
• Stuck contactor/valve — continuous cooling.

Check steps

• Check setpoint & alarm limits.
• Check compressor/valve for continuous run.

Affected parts

• Schütz
• Magnetventil

Safety note

Source: Eliwell resmi servis kılavuzu — Same manuals, p.16/p.20: 'AL1 | Alarm for LOW Pb1 temperature | value read by Pb1 < LAL after time of "tAO" | Recording of label AL1 in folder AL, No effect on regulation | Wait until value read by Pb1 returns above LAL.'

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

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