Bosch A01 (5310)

Critical

Compress — Hot gas (discharge) temperature too high.

Bosch A01 (5310): Hot gas (discharge) temperature too high. This fault typically halts operation and needs immediate attention.

Possible causes

Low refrigerant / low evaporation.
EXV/heat exchanger problem.

Check steps

Check charge, superheat & pressures.
Check discharge sensor TR6.

Affected parts

Heißgasfühler TR6
Kältemittel

Safety note

Hot discharge side & follow F-Gas.

Source: Bosch resmi servis kılavuzu — Cross-verified: code 5310 = Z1 too high discharge gas temperature, TR6 > max 90/115C for 60s — matches 'Heißgastemperatur zu hoch'.

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

Look up in Enthalio →

Related fault codes

No EMS BUS communication / internal connectionA11 Booster heater limiter (STB) or pressure switcA01 (5246) Hot gas temperature too high (TR6 > 110–120H01 (5311) Z1 phase monitor tripped: one or more supply-vA01 (5273) High pressure guard MR1 tripped.H01 (5508) Compressor control failure – not running / locA01 (5350)