Service manual

Bair Hugger Model 775 Temperature Management Unit Service Manual
18
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Viewing the Hour Meter
Service frequency
As oen as necessary�
Tools/equipment
None required�
Method
1� If your unit is already ON, you can begin the test from any operating mode� Otherwise, connect
the temperature management unit to a grounded power source� e unit performs a self-test and
automatically proceeds to Standby mode� en select any operating mode�
2� Press the Alternative Mode button for 3 seconds� (See "Figure 2� Location of Alternative Mode
button" on page11�) e temperature management unit is now in Hour Meter Display mode� In
this mode, the temperature management unit performs the following tasks:
a� Continues to operate in current operating mode�
b� “Hours” appears in the alphanumeric display�
c� Cumulative hours of temperature management unit operation appear in the alphanumeric
display� e time is displayed in whole hours only�
3� Wait 60 seconds or press the Alternative Mode button to return the temperature management unit to
its previous operating mode�
Viewing the Operating Timer
To view the amount of time the temperature management unit has been operating in the current
temperature mode, press and hold the current temperature mode button for at least 3 seconds� e time is
displayed in HH:MM:SS format�