Norcold Polar N7LX, Руководство по обслуживанию

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SERVICE MANUAL
51
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SCREEN 4: Stored Fault History
Touch and release the MODE button to bring up screen 4.
This screen displays stored fault history using lighted LED seg-
ments. Refer to illustration below for fault history definitions of the
individual LED segments.
If a fault occurred, its assigned fault
history LED segment will be on.
SCREEN 5. Stored Fault History
Touch and release the MODE button to bring up screen 5.
This screen also displays stored fault history using lighted LED
segments. Refer to illustration below for fault history definitions of
the individual LED segments. If a fault occurred, its assigned
fault history LED segment will be on .
NOR000650A-16
Screen 4 Second view
Screen 4 Initial view
1
2 3
5
6
7
4
Not used
AC mode selected
but not available
Burner failed to
ignite/reignite
DC voltage low
DC voltage high
AC heater relay
stuck closed
AC heater failed
open
NOROOO651A
NOR000650A-17
Screen 5 Second view
Screen 5 Initial view
NOR000651A-1
1
2 3
5
6
7
4
Flame present
with gas off
Service required
error has occurred
Thermistor failure
DC heater relay stuck
closed (always current)
DC heater relay stuck
open (no current)
Not used
Not used
SCREEN 6. Erasing Fault History
Touch and release the MODE button to bring up screen 6.
This screen provides a way to erase fault history from memory. To
erase the fault history:
■ Touch and hold the Temperature Set button five (5) seconds
until “CL” shows on the screen.
■ Once “CL” is displayed, release the Temperature Set button.
■ Touch and hold Temperature Set button five (5) seconds until
“Er” is displayed again. At this point, the fault history has been
cleared on both Screen 4 and Screen 5.
SCREEN 7. Power Board Inputs
Touch and release the MODE button to bring up screen 7.
This screen displays “live” power board inputs using lighted LED
segments. Refer to illustration below for “live” input definitions of
the individual LED segments. If a power board input is active or
“live,” its assigned input LED segment will be on.
NOR000650A-18
Screen 6 Second view
Screen 6 Initial view
Screen 6 Fourth view
Screen 6 Third view
NOR000650A-20
Screen 7 Second view
Screen 7 Initial view
1
2 3
5
6
7
4
Flame is sensed.
Not used
Thermister is sensed in range
Not used
Not used
Not used
Not used
NOR000651A-2
DIAGNOSTIC MODE - N7LX and N8LX MODELS, cont’d.