Sears Kenmore Three-Speed with Options and Speeds Switch AUTOMATIC WASHERS Troubleshooting Guide download pdf (Page 39)

DOOR LOCKING AND UNLOCKING

Locking

The Door Locking Routine will only start if the

door

is securely closed

and the Door Switch Contact

is

CLOSED.

1. The Door Lock Relay is energized whenever

a

wash cycle

is started.

The relay is operated

for 40 milliseconds.

2. During

the

next three

(3)

seconds, the contacts on the

door lock are

checked by the central

control unit

a.

lf

the contacts

are CLOSED. this

routine

is

finished.

b.

lf

the contacts are still

open after 3

seconds,

the Central Control

Unit energizes

the

Door Lock Relay for

40 ms

and then checks

the door lock contacts

for 3 seconds.

This

will

occur a

maximum of 6 times. lf the door

is not locked after

6 trials, the Central

Control Unit

will

enter

a failure mode

and

the digital display

will show

FdL.

Unlocking

Unlocking will

occur

only under the

following

conditions:

1. The drive motor speed equals

0 or the

time since

the drive

motor STOP command

has

been sent to the

Motor Control Unit

is

greater

than

180 seconds.

2.

The

time since the

inlet valve was CLOSED is

greater

than

five

(5)

seconds.

3.

lf

the temperature of

the water

is

greater

than 122"

F

(50"

C), the

water will be drained

before unlocking

will

occur.

4. lf the water

level is higher than the wash level in the

Delicate,

Wool

or

Handwash cycles,

the

water will

be

drained before unlocking will occur.

The Unlocking Routine is:

1. The Door Unlock

Relay is energized for 40 ms.

2. During the next three

(3)

seconds, the contacts of

the Door

Lock are checked.

lf

the

con-

tacts are OPEN, the Unlocking

Routine is finished.

3. lf the contacts are still CLOSED

after three

(3)

seconds,

the Central

Control Unit ener-

gizes

the

Door Unlock Relay

for 40 ms.

and then check

the door

lock contacts

for three

(3)

seconds.

lf the door

is

not unlocked after 6 trials,

the Central

Control Unit

will enter a

failure mode and the

digital display will

show

FdU.

Child

Security

Routine

The Child Security Routine

is initiated

at the start of a

wash cycle.

1. The Door is Locked.

2. The

tub

fills with Cold water

for three

(3)

seconds.

3. The door is Unlocked for

five

(5)

seconds.

4.

The door

is Locked and the wash cycle begins.

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