andrews RFF 13/175 Installation And Service Manual page 45

Status Service needed
SELECT
Fig. 62
No current error code
°F
idle
Fig. 63
Error code index
idle
Fig. 64
No error code shown
for code index 10
idle
Fig. 65
Issue 4 21042018
SET
6.7.3 Error codes and error history display
If there is an operating problem with the water heater, an error
code number will appear on the water heater display with
'Service Needed' to the right of the 'Status' indicator. The error
code label is located below the water heater display and the
following section in this Installation and Operating Instruction
Manual explains the error codes with corrective actions to repair
the water heater. Example of Error Code in the Display
(Fig. 62).
6.7.4 Error code history
In 'Service Mode' pressing the 'Select' button after the 'Software
Version' (item 8 in the previously described sequence of service
modes) will show an error code history, if there have been any
previous operating problems with the water heater. If the display
shows --, there is not a current error code.
The Water Heater Display will provide up to 10 previous error
codes. The oldest error code will be stored in code index #1
and the most recent in code index #10 (if there are 10 error
codes).
6.7.5 To view previous error codes
1. In 'Service Mode' press the 'Select' button until the next
display after the 'Software Version'. If there are no current
error codes, the display will show -- (Fig. 63).
2. Press the "Temperature Down" button to select the error
code index, starting with the most recent error code '10'
(Fig. 64).
3. Press the "Select" button to view the error code for
'code 10'. If there is a number displayed, note what the
number is. The label next to the water heater display will
identify the code number. If no number is displayed with
only a '--' in the water heater display, then there has not
been an error code for error code index 10 (Fig. 65).
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