Sears 28.7123 operating instructions Battery may not want

Models: 28.7123

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PROBLEM

POSSIBLE CAUSE

REASON/SOLUTION

The charger is making an

Circuit breaker is cycling.

The settings may be wrong.

audible clicking sound.

 

Check the charger settings.

 

Battery is defective.

Have the battery checked.

 

Shorted battery cables or

Circuit breaker cycles when

 

clips.

current draw is too high.

 

 

Check for shorted cables

 

 

or clips and replace if

 

 

necessary.

 

Severely discharged battery,

The battery may not want

 

but otherwise it is a good

to accept a charge due to

 

battery.

a run-down state. Allow

 

 

charging to continue until

 

 

battery has a chance to

 

 

recover sufficiently to take

 

 

a charge. If more than 20

 

 

minutes, stop charging and

 

 

have the battery checked.

 

Reverse connections at

Shut the charger off and

 

battery.

correct the lead connections.

Charger makes a loud buzz

Transformer laminations

No problem, this is a normal

or hum.

vibrate (buzz).

condition.

 

Shorted Diode Assembly or

Have charger checked by a

 

Output Rectifier Assembly

qualified technician.

 

(hum).

 

Short or no start cycle when

Drawing more than the

Crank time varies with the

cranking engine.

Engine Start rate.

amount of current drawn. If

 

 

cranking draws more than

 

 

the Engine Start rate, crank

 

 

time may be less than 5

 

 

seconds.

 

Failure to wait 4 minutes

Wait 4 minutes of rest time

 

between cranks.

before the next crank.

 

Clips are not making a good

Check for poor connection at

 

connection.

battery and frame.

 

AC cord and/or extension

Check power cord and

 

cord is loose.

extension cord for loose

 

 

fitting plug.

 

No power at receptacle.

Check for open fuse or

 

 

circuit breaker supplying AC

 

 

outlet.

 

The charger may be

The thermal protector may

 

overheated.

have tripped and needs a

 

 

little longer to reset. Make

 

 

sure the charger vents are

 

 

not blocked. Wait and try

 

 

again.

 

Battery may be severely

On a severely discharged

 

discharged.

battery, charge for 10 to

 

 

15 minutes in the 40 amp

 

 

manual rate to help assist in

 

 

cranking.

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Sears 28.7123 operating instructions Battery may not want