Eliwell PAL

Medium

IDPlus 902/961/971/974 — General pressure switch alarm (critical) — number N of pressure switch activations equals limit PEn; device locked, manual reset via rAP function required

Eliwell PAL: General pressure switch alarm (critical) — number N of pressure switch activations equals limit PEn; device locked, manual reset via rAP function required This fault usually isn't an immediate stop, but should be checked soon.

Possible causes

Repeated pressure switch trips indicate a persistent refrigerant circuit problem (undercharge/overcharge, blocked filter drier, faulty condenser fan)
Pressure switch itself faulty or incorrectly set (switching differential)

Check steps

Switch the device off and back on again; then run the rAP function (manual reset) in the FnC functions folder
Check refrigerant charge, filter drier blockage, and condenser fan operation before resetting

Affected parts

Yüksek/düşük basınç şalteri
filtre kurutucu
kondenser fanı
soğutucu gaz

Safety note

Ensure root cause is resolved before resetting. Perform refrigerant circuit work only with recovery/depressurization, device de-energized.

Source: Eliwell resmi servis kilavuzu (bagimsiz cift-dogrulandi) — Eliwell IDPlus 902/961/971/974 Installation and User Manual, code 9IS54157 (verified independently in both rel. 07/11 and rel. 06/15 editions), p.17, ALARMS table, row "PAL": Fault = "General pressure switch alarm"; Cause = "Activation of pressure alarm by general pressure switch. If the number N of pressure switc…

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

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Related fault codes

Probe 3 (Pb3) faulty — measured value outside E3 Over Heating alarm — Pb3 value has exceeded thCOH General pressure switch alarm — pressure alarmnPA Logs the Max/Min value recorded by Pb3 when itHC n Stores the dwell time of the Pb3 value outsidetC n Logs the value recorded by Pb3 on return from bC n