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TROUBLESHOOTING GUIDE
Form No. EBOOSTERBWM-1009
15
Symptom Probable Cause Corrective Action
Water reaches 180°F (82°C) but
does not last through the entire
dishwasher operation.
Low incoming water temperature. Incoming water temperature must be adequate
for booster size. Increase incoming water
temperature.
Incoming water temperature drops.
Primary water supply is not adequate to provide
correct temperature in sufficient quantities.
Increase supply of primary hot water.
Temperature setting out of
calibration or inoperable.
Temperature setting should be maximum
of 190°F (88°C).
Incorrect voltage.
Check voltage on heater serial plate and make
sure supplied voltage matches. A 240 V booster
water heater operating on 208 V reduces wattage
to 76% of the normal output.
High limit switch may be tripped or
defective.
Reset switch. If switch continues to trip or cannot
be reset contact an Authorized Service Agent.
Low water cutoff inoperable,
contacts do not close.
Contact Authorized Service Agent or Bradford
White for assistance.
Transformer not working properly. Contact Authorized Service Agent or Bradford
White for assistance.
Contactors do not pull in. Contact Authorized Service Agent or Bradford
White for assistance.
Fuses may be blown or circuit
breaker tripped.
Check for proper fuse sizing. Replace fuses.
Check/reset circuit breaker.
Over-current fuses may be blown. Contact Authorized Service Agent or Bradford
White for assistance.
The booster heater does not heat
at all or only delivers water at
120°–150°F (49°–66°C).
Flow pressure is too high. Higher pressure uses an excessive quantity of hot
water. Adjust flow pressure to 20 psi (138 kPa).
Booster water heater may be
undersized.
Booster water heater must be sized properly for
incoming water temperature and rinse
requirements of the dish machine.
Unit may have been energized
without water (dry fired).
This will cause the elements to burn out quickly.
Replace the element(s).