Commercial Refrigeration
E04: Door open longer than permitted
True Refrigeration TSSU-72
Safe preliminary checks permitted
Documented meaning
The door switch reported the door open beyond the configured delay.
Model variants covered: see the model record
Documented possible causes
- · Door not self-closing
- · Gasket or hinge misalignment
- · Door switch stuck
Safe preliminary checks
- · Check the door closes fully on its own
Professional service required
- · Check the door closes fully on its own
- · Inspect the gasket for damage
- · Keep delivery loading brief in warm weather
- · safe_checks_permitted
Stop and call a professional if you see
- · Burning smell, smoke, water on live parts or a tripped protective device
- · Unusual noise, vibration or a refrigerant leak