CARR

Carrier P.97

High

Pro-Dialog+ (30RB060-390) — Water exchanger temperature sensors swapped (entering < leaving for > 1 min. while a compressor runs).

Carrier P.97: Water exchanger temperature sensors swapped (entering < leaving for > 1 min. while a compressor runs). This fault noticeably affects operation.

Possible causes

EWT/LWT wiring at main base board (connector J6, channels 1,2) swapped or sensor faulty.

Check steps

Check EWT/LWT wiring at J6, verify sensor placement in water nozzles.

Affected parts

EWT-Fühler
LWT-Fühler

Safety note

Manual reset required.

Source: Carrier AquaSnap 30RB060-390 Pro-Dialog+ Controls, Start-Up, Operation, Service and Troubleshooting Instructions (Form 30RB-7T), Table 46 Alarm Codes + alarm descriptions, p.63-78

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

Look up in Enthalio →

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