Quick Fixes for Common Cold Storage Faults
1️⃣ No Display on Controller
- ✅ Check if the circuit breaker is tripped.
- ✅ Verify power supply for phase loss or voltage fluctuations.
- ✅ Inspect emergency stop switch – ensure it’s engaged.
2️⃣ Inadequate Cooling / Unable to Reach Set Temperature
- ✅ Clean condenser coils of dust and debris.
- ✅ Defrost evaporator if excessive ice buildup is observed.
- ✅ Check for refrigerant leaks (hissing sounds, oil stains).
- ✅ Ensure proper air circulation – avoid overloading and blockages.
3️⃣ Water Leakage into Cold Room
- ✅ Clear clogged drain pipes with compressed air or warm water.
- ✅ Check drain heater operation (if equipped).
4️⃣ Compressor Failure (Evaporator Runs but Compressor Doesn’t)
- ✅ Inspect pressure control settings and reset if needed.
- ✅ Test compressor contactor for electrical faults.
5️⃣ Lighting Failure
- ✅ Replace faulty bulbs with cold-rated LEDs.
- ✅ Check light switch and wiring connections.
6️⃣ Unit Shutdown Due to High Ambient Temperature
- ✅ Ensure condenser fans are operational.
- ✅ Clean condenser and maintain clear surroundings.
- ✅ Reset high-pressure control after resolving the issue.
Pro Tip: Regular maintenance prevents 80% of these issues! Schedule quarterly check-ups.
Need Professional Help?
Contact sales@nuonuorefrigeration.com or visit https://www.nuonuorefrigeration.com for emergency support.