CriticalR-290 Self-Contained Cases
R-290 Leak / Flammability Safety
R-290 is propane — an A3 flammable refrigerant. Even the small charge in a self-contained case can create a flammable atmosphere near the unit. Handle any leak or sealed-system repair as a fire/ignition hazard first.
Symptoms
- Refrigerant smell (odorant may be present), hissing, or oil trace at the sealed system
- Case not cooling with suspected charge loss
- Built-in leak detector (if fitted) tripping / case locked out
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Likely causes, step-by-step troubleshooting & safety notes
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