Sears 28.71234 operating instructions Troubleshooting, Problem Possible Cause SOLUTION/REASONS

PROBLEM

POSSIBLE CAUSE

SOLUTION/REASONS

No reading on the am-

Clamps are not making a

Check for poor connec-

meter.

good connection.

tions to battery and frame.

Make sure connecting

points are clean.

2-amp charge rate is be-

Ammeter may show no

ing used.

activity at the 2-amp

charge rate.

Short start cycle when

Drawing more than 250

Crank time varies with the

cranking engine.

amps for a period of 3

amount of current drawn.

seconds or less.

If cranking draws more

than 250 amps, crank

time may be less than 3

seconds.

Failure to wait for 4

Wait 4 minutes before

minutes (240 seconds)

next crank.

between cranks.

METER reading stays

Battery severely dis-

Continue charging battery

high.

charged.

for two more hours. If

problem continues, call

Sears Service Center.

Wrong battery voltage.

Continue charging battery.

Ammeter reads less than

Extension cord too long or

Use shorter or heavier

selected charge rate when

wire gauge too small.

gauge extension cord.

charging a discharged

Weak cell or sulfated plate

Sulfated battery will

battery.

in battery.

eventually take a normal

charge if left connected. If

the battery will not take a

charge, have it tested by a

Sears technician.

Battery is only partially

Continue charging battery.

discharged.

Charger makes a loud

Transformer laminations

Continue charging. Buzz

buzz or hum.

vibrate (buzz).

is not abnormal.

Shorted diode (hum).

Have charger tested by

Sears technician.