
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To enter
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, press and hold the
:DWHU
,
&UXVKHG
and
&XEHG
pads together for 3 to 5
seconds.
Press
<HV
to enter the
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or
1R
to return
to main screen.
The display will show
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.
The display will show 00 in the FZ temperature
display and 00 in the FF temperature display. This
is the setting to access the Service Diagnostic Tests.
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the 3-way valve will go to the home position (both
closed), and the dampers will go to closed position.
The
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will time out and go back to the main screen if no tests are performed within 5 minutes.
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To exit without resetting the boards, hold the
:DWHU
,
&UXVKHG
and
&XEHG
pads together down until
prompted with
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. Select
<HV
. To exit and reset the boards, set the
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to 00
16, then press GO.