SPRSUN
Startup Noise / Hydraulic or Refrigerant Shock
Unit is unusually loud during startup compared to normal operation.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Water hammer due to rapid valve operation, Loose mounting hardware, Refrigerant migration causing noisy start, Compressor mounting issues
How to Fix / Troubleshooting
Safety first: Turn off power before tightening hardware or adjusting valves.
- Observe startup: Listen to identify whether noise is from water pipes (hammer) or from inside the unit (compressor/fan).
- Slow valve operation: Open and close pool valves slowly to reduce water hammer. Consider installing water hammer arrestors if needed.
- Tighten mounts: Check and tighten compressor and fan mounts, and ensure the unit is firmly anchored to its pad.
- Technician evaluation: If compressor starts with a loud bang or clunk, a technician should check for refrigerant migration issues and compressor health.
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Repair Difficulty
Medium
3/5
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