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Ronald LeeAug 18, 2025
How to fix S&A CWFL-500 ultrahigh water temperature alarm (E2)?
- MMatthew PetersonAug 18, 2025
If your S&A Chiller displays an E2 error, indicating an ultrahigh water temperature alarm, several factors could be responsible. First, the dust gauze might be blocked, hindering thermolysis, so disassemble and clean it regularly. Ensure proper ventilation around the air outlet and inlet. Unstable or extremely low voltage can also trigger this alarm, so improve the power supply circuit or use a voltage regulator. Resetting the thermostat parameters or restoring factory settings might help if the settings are improper. Allow sufficient time (more than 5 minutes) for refrigeration between power cycles. Finally, excessive heat load can cause this issue; reduce the heat load or consider a model with larger cooling capacity.
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