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SECTION 5
50.
SERVICER'S TECH. INFORMATION
I
DIAGNOSTICS
AUTOMATIC ELECTRONIC DIAGNOSTICS
The face plate has a self-diagnostic function for the
electrical system (except input power). The face plate
monitors the electronic components and circuits for
correct operation. If a malfunc- I ]
tion occurs, an error code ap- E- 3
pears in the face plate display.
The chart below shows the error codes that could
appear, and the possible defects for each code.
While an error code appears in the display, all face
plate buttons are inoperable except the SET/CLEAR
button. SET/CLEAR remains operational so the
service person can make the MANUAL ADVANCE
DIAGNOSTICS to further isolate the defect.
CODE
E-1
E-2, E-3
E-4
POSSIBLE DEFECT
MOST LIKELY = =" LESS LIKELY
motor inop. / wiring harness or connection to switch / switch / face plate
face plate
face plate / position switch
PROCEDURE FOR REMOVING ERROR CODE FROM FACE PLATE: 1. Unplug transformer 2. Correct
defect 3. Plug-in transformer 4. Wait for 6 minutes. The error code will return ifthe defect was notcorrected.
MANUAL ADVANCE DIAGNOSTIC
Use the following procedures to advance filter valve
through recharge cycles to check operation.
Remove top cover to observe valve rotation.
DISPLAY MUST SHOW TIME AND DAY
1. Press and hol_ll_] for3 seconds
until 18:88 displays.
2. Press [] to display position (P)
switch open or closed indicator.
If valve is in service, backwash or fast
rinse (see markings on cam under mo-
tor), display will show... (--), meaning
the position switch is open.
While the valve is rotating from
one cycle to another, the display
shows (-P), meaning the posi-
tion switch is closed.
M
NOTE:
While in manual advance, the time display automati-
cally returns to the present time of day if a button is not
pressed within 4 minutes.
=
To advance valve, pressi5]each time you want to
move into next cycle. (Pressing [] while valve is
rotating has no affect.)
-- Press []to move filter into back- I - P I
wash. Look for a fast flow of water l - - I
from drain hoses.
A slow flow indicates an obstructed top distribu-
tor, backwash flow plug, drain hose, or iron fouled
mineral bed.
=
5.
-- Press [] to move filter into fast
rinse. Again look for fast drain flow. I - P I
-- To return filter to service, press[5--]. _- -- J
Press [] to display 18:88.
Press [] to return present time and i. _ 3:H5 I
day.
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