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Display Panel Not Responding
1. If the chiller is controlled be an external controller, confirm the external controller settings.
2. If the issue is still occurring, disconnect external controller from the chiller. Then check operation at chiller.
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If display panel responds, the problem lies with the external controller or its installation. Contact the
manufacturer of the external control device.
Chiller Not Running
1. Confirm equipment is receiving power. Is the chiller display illuminated?
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If not, confirm the main breaker (located at the power supply panel) and the disconnect switch (located near
the chiller) are both turned on.
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If the display still does not illuminate, it is recommended that the chiller installer or electrician confirms
chiller is receiving power.
2. Confirm correct mode is selected.
3. Confirm thermostat is set correctly.
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When cooling the water is desired, the thermostat should be set below the current water temperature.
4. If an error code is displayed, diagnose and correct the cause of the code. See "Fault Codes" on page 28.
Chiller's Tripping Breaker
1. Have an electrician confirm breakers are in good condition and properly sized for the chiller.
2. Multiple chillers installed at the same site may benefit from special automatic sequencing controllers to avoid
excessive power drops at start-up.
3. If a fault occurs immediately when the compressor starts, a qualified technician should evaluate the system.
Chiller Won’t Shut Off
PLEASE NOTE
When chiller is set to "
OFF
", the display will show either the water temperature or
FLO
.
1. Confirm the chiller has reached the desired temperature set on the thermostat. The chiller will continue to run
until the set temperature is reached.
2. If the chiller is incorrectly set to
HEA
or
ACH
mode, the unit will not deactivate.
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See "Setting Operating Mode" on page 1 for more information.
3. If the chiller is using an external controller, it may not be set correctly.
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See "Operating Chiller (With an External Controller)" on page 1.