00027
Carrier Transicold
Critical
High Suction Pressure
Suction pressure higher than allowed limit for the engine.
Possible causes
- Excessive heat load in trailer
- Expansion valve stuck open
- Incorrect TXV adjustment
- Failed modulation valve (ISM)
Recommended actions
- Verify ISM operation
- Validate suction pressure sensor
- Lower thermal load gradually
- Check TXV bulb
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