High Pressure Switch Has Shut The System Down; Instructions To Reset High Pressure Switch; Alarm Annunciation - Wine Guardian WG15 Installation, Operation And Maintenance Manual

Wine cellar cooling systems through-the-wall wine cellar cooling systems

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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 coil 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 the unit.



 Turn the Wine Guardian system off at the control panel (local or remote interface).

 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.

 Push in the button until it locks into position.

 Place the condenser side plastic panel back on. 

 Restart the unit at the control panel (local or remote interface).

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.

Solution

Remove the obstruction in the duct or grille

or clean the coil. Then restart the system

after resetting the high pressure switch.

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