PROBLEM
CAUSE
DO THIS
MOTOR DOES NOT RUN AT ALL BUT
BATTERY IS KNOWN TO BE GOOD, HAS
A FULL CHARGE, AND IS BEING
CHARGED DAILY AT A MINIMUM OF 6
AMPS
POWER NOT GETTING TO MOTOR DUE
TO FAULTY SWITCH, BATTERY CONNEC-
TIONS ARE BAD, OR THERE IS A BREAK
IN THE WIRE
CHECK ALL CONNECTIONS FIRST!
CHECK TO SEE IF 30AMP FUSE HOLDER
IS PRESENT. CHECK THE FUSE.
IF ALL CONNECTIONS ARE GOOD,
THEN BY-PASS THE SWITCH AND WIRE
THE HEAD DIRECTLY TO THE BATTERY -
IF IT RUNS, THEN THE PROBLEM IS
WITH THE SWITCH. IF IT DOES NOT
RUN, THEN THERE IS A BREAK IN THE
WIRE OR A MOTOR SHORT
PROBLEM
CAUSE
DO THIS
VACUUM RUNS STRONG BUT BATTERY
DRAINS AFTER A FEW POOLS. THE
NEXT DAY IT DOES THE SAME THING.
BATTERY PROBLEMS:
1. BATTERY WATER IS LOW OR BATTERY
IS OLD
2. BATTERY CONNECTIONS ARE WEAK
OR CORRODED
3. UNDERCHARGING - BATTERY NOT
GETTING FULL CHARGE OR IS NOT
BEING CHARGED DAILY AT A MINIMUM
6AMP OUTPUT
CHECK ALL CONNECTIONS FIRST!
CHARGE BATTERY AT A MINIMUM
OF 6 AMPS EVERY DAY. NO TRICKLE
CHARGING!
HAVE YOUR BATTERY CHECKED
CHECK THAT YOUR CHARGER IS
CHARGING. A FULLY CHARGED 12
VOLT BATTERY WILL TEST AT MORE
THAN 13 VOLTS.
PROBLEM
CAUSE
DO THIS
SLUGGISH OVERALL MOTOR PERFO-
MANCE
VACUUM DOES NOT RUN AS STRONG
AS WHEN IT WAS NEW
VACUUM IS GETTING SLOWER AND
WEAKER EVERY DAY
MOTOR RUNS INTERMITTENTLY
EXCESSIVE DEBRIS UNDER PROP
BAD WIRING CONNECTIONS
BATTERY PROBLEM (SEE ABOVE)
INTERNAL COMPONENTS ARE
WORN OUT
SHORT IN POWER CORD
REMOVE PROP AND CLEAN DEBRIS
OFF SHAFT
CHECK ALL ELECTRICAL CONNEC-
TIONS FOR HEAT. IF THEY ARE HOT
WHILE THE VACUUM IS RUNNING
UNDERWATER, REPLACE OR RESET
BATTERY CONNECTIONS
LOOK FOR HEAT!
HEAT INDICATES POWER LOSS,
WHICH
D
RAINS POWER AND SHORTENS
THE LIFE OF
THE
BATTERY
CONTACT HAMMERHEAD FOR
SERVICE OR REPLACE THE MOTOR/
CORD ASSEMBLY
MOTOR TROUBLESHOOTING GUIDE - BASIC
USER GUIDE 11
hammerheadvac.com/learn
V1.2 2/1/18
11
