Sears 625.34855 Service Tech Information 5A.TROUBLESHOOTING, Automatic Electronic Diagnostics

SECTION 5

SERVICE TECH INFORMATION

5A.TROUBLESHOOTING

AUTOMATIC ELECTRONIC DIAGNOSTICS

The	face	plate		computer		has	a self-diagnostic
function		for the		electrical		system	(except	input
power	and		water	meter).		The
computer			monitors		the	elec-	_--_-- Er	r_
tronic	components				and circuits		!
for	correct		operation.			If a
malfunction			occurs,		an	error	f
code	appears		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 SELECT

button. SELECT remains operational so the service

person can make the MANUAL INITIATED

ELECTRONIC DIAGNOSTICS (below) to further isolate the defect, and check the water meter.

CODE

Err1

Err2

Err3

Err4

Err5

				POSSIBLE		DEFECT
	MOST	LIKELY	-_'				_, LESS LIKELY
motor	inop.	/ wiring	harness	or connection		to switch / position	switch / face plate
face	plate
motor	/ face	plate		See	face	plate replacement	on
face	plate /	position	switch	page	22.
face	plate

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 if the defect was not corrected.

MANUAL INITIATED ELECTRONICS DIAG- NOSTICS

valve position imdicator (Fdland Brine flashing)

•minutes of bnning bme

u_..	/	iI-lrl-	_-(begirmtocountdown
		I UU	when valve reaches

lo To enter diagnostics °

--from		a	error	code		display,		press	the	#1
SELECT button.
--from		a	time	display,		press	and	hold	the	#1
SELECT button				for	3 seconds.
You will		see	1 of the following				displays.
valve	position indicator
_r	mLi _			numberol days
							VALVE IN SERVICE
							POSITION
il-V			_	water meter
		=_1_ "		regenera*_on
.......		\		turbine		count
_ition		switch indicator
		(open)
valve poytion			indicator
_,_ _./n_._n			1_	rninutesoffill
I ---i:---I		LI=I'LU -_		cycleremaining
	I					VALVE	IN A RECHARGE
m _						POSITION (FILL, IN THIS
BBIt
==,	*			water	mete{	EXAMPLE)
				turt_ne	count
position		switch	indicator

ii	_, UU "_ U_		brJrtirl_ po_i_on)	POSITIONVALVE ROTATINGTO
....	_- _--"	_'_'_	wa_r meter	ANOTHER(FROM
			turbine count	FILLTO BRINING IN
	posilionswitchindicator			THIS EXAMPLE)
	(dosed)

All of the preceeding displays show what position

the valve is in, if the turbine is operating, and the

position switch open or closed status.

o Press		the	ON/OFF-HOLD			button	to advance
the	valve		to	the	next	position.	To verify
component			operation,			or to possibly	isolate a
defect,		observe		the	following.

POSITION SWITCH STATUS: With the valve in

service, or any of the recharge cycles, the switch

indicator will show open -'_-. While the valve is

rotating from 1 position to another, the indicator

will show the switch closed -_-. A defect is

probable if indications vary from this pattern.

(open)