High Pressure Switch Has Shut The Unit Down - Wine Guardian Through-the-Wall Installation, Operation And Maintenance Manual

High Pressure Switch has Shut the System Down
Every Wine Guardian system has a manual reset high pressure switch in the refrigeration system. This
switch shuts the compressor and condenser down if the head pressure in the system is too high. It is
intended to protect the compressor. Restricted airflow through the condenser is the most common
reason for the pressure to become too high. This can be caused by dust covering the filter or an
obstruction blocking the airflow in the duct or grille.
Possible Cause
Head Pressure in unit is too high because
an obstruction is restricting air flow through. clean the coil. Then restart the system after
Instructions to Reset High Pressure Switch
√ Turn the Wine Guardian system off at the control (local or remote)
√ Locate the high pressure reset switch which is located within the air outlet section at the
condenser side of the system. The switch has a red push button and is accessible by
removing the plastic end cover.
√ Remove the condenser side plastic access panel.
√ Locate the high pressure switch reset in the panel behind the plastic access panel.
√ Push in the button until it locks into position.
√ Place the condenser side plastic panel back on.
√ Restart the unit at the local (or remote interface).
Alarm Annunciation
When an alarm condition occurs, the control will flash the backlight on the display in addition to
annunciating the actual fault on the screen. The user can make the backlight flashing stop by pressing
a button on the local user interface. However, the alarm annunciation will not actually clear on the
display until the fault is corrected.
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Solution
Remove the obstruction in the duct or grille or
resetting the high pressure switch.