OPERATING & MAINTENANCE MANUAL
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CONSOLE HYBRID WATER-COOLED AIR CONDITIONER (CHW)
10
TROUBLESHOOTING
1. If unit is not operating, conduct the following checks:
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If a flashing “A” appears on the display, contact a trained technician.
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Check the electrical connections.
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Check the voltage and current against the electrical specifications on the unit nameplate.
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Look for wiring errors. Check for loose screw connections in both line and low voltage terminals.
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Check the water supply piping for proper water connection.
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Check for dirty filters.
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Check indoor fan for proper operation.
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Check that unit did not cycle off on thermostat.
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Check for fault codes on the control board consult the trouble shooting guide.
2. If checks above fail to reveal operating problem and the unit still does not operate after reset, contact a trained service
technician to conduct full unit diagnostics and to repair the equipment.
