Service manual
Bair Hugger Model 775 Temperature Management Unit Service Manual
16
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Viewing the Fault Code Log
Service frequency
As oen as necessary�
Tools/equipment
None required�
Method
1� If your temperature management unit is already ON, you can access the fault code log 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 ("Figure 2� Location of Alternative Mode button" on page11)
and the 32°C button simultaneously for three seconds� e temperature management unit is now in
Fault Code Log mode� In this mode, the temperature management unit performs the following tasks:
a� Continues to operate in current operating mode�
b. 32°C and 38°C indicator light ashes�
c� Text “FC(n) XXX” appears in the alphanumeric display� “FC” is an abbreviation for the
phrase “fault code,” “n” represents the numerical order of the fault code in the log, and “XXX”
represents the code for the fault condition� See page 17 for a list of fault codes and their
meanings�
d� e time (HH:MM:SS) of each fault appears below “FC(n) XXX” in the alphanumeric display� If
the unit reaches 100 or more hours the time only reads hours and minutes�
3� Press either the 32°C or 38°C button to view the next fault code in the log� e temperature
management unit stores a maximum of 5 fault codes in non volatile memory�
4� Press the Alternative Mode button to return the temperature management unit to its previous
operating mode�
Clearing the Fault Code Log
Put the unit in Fault Code mode by pressing the Alternative Mode button and the 32°C button
simultaneously for three seconds; then, press the 43°C button�
note
e fault code log should not be cleared unless instructed to do so by a 3M Patient Warming representative�