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6
T
ROUBLESHOOTING
If the dishwasher encounters a problem, check this Troubleshooting Guide. Some simple
problems can be quickly resolved, allowing the dishwasher to be returned to operation faster
than placing a service call.
Problem
HEATER HIGH LIMIT light
is illuminated
Machine does not fill
Final rinse does not
activate
Steam escapes the
machine during operation
Water leaks around front
access door seams
during operation
Stripes/smears on ware
Foaming in the wash tank
Contact your Meiko Authorized Service Agent if you cannot correct the problem.
An Authorized Service Agency Listing was supplied with your dishwasher. If you do
not have the listing, call 1-800-868-3840 for assistance, or visit Meiko's website at
www.meiko.us.
Action
•
On machines with electric tank heat, this light will illuminate if the machine enters
a high limit safety shutdown. Contact your Meiko Authorized Service Agent.
•
Check that the external drain handle(s) are in the DRAIN CLOSED position.
•
Check that the table limit switch (if so equipped) is not engaged.
•
Check that the water supply is turned on.
•
Check the dirt trap(s) in the water inlet(s) and clean them if necessary.
•
Check the float switches in the tank(s). If the switch(es) are dirty or coated
with chemicals or lime deposits, they may not function correctly. If they are
dirty, clean or delime the interior.
•
Check that the water supply is turned on.
•
Check that the AUTO/MANUAL switch is properly set in the AUTO position.
•
Check the dirt trap in the hot water inlet and clean it if necessary.
•
Check the water pressure at the final rinse pressure gauge. If the water
supply is turned on, the dirt trap is clean, and there is still low pressure at
the gauge, there may be low water pressure being supplied to the machine.
All rack conveyor dishwashers release some steam at the ends of the machine.
However, if steam is excessive, check the following:
•
Check that the curtains are correctly installed.
•
Check that the baffles in the vent cowl collars (if so equipped) are correctly
positioned. The baffles should be opened just enough to prevent steam
from escaping the ends of the machine with the curtains installed.
•
Check that the end caps are correctly installed at the end of all wash arms,
as well as prewash and recirculating rinse arms (if so equipped).
•
Check that the curtains are installed properly.
•
Check that the ware is correctly loaded into the racks. Refer to the
Operation section of this Manual.
•
Check for correct detergent and rinse aid concentration.
•
Check for excessive mineral content in the water supply. Meiko recommends
a hardness of 4 grains per U.S. gallon.
•
Check that commercial (not domestic) detergents and rinse aids are being
used.
•
Check for correct detergent and rinse aid concentration.
•
Check that heavily soiled ware is being correctly pre-scrapped. Excessive
amounts of grease or soiling in the wash tank can cause foaming.
•
Check that the tank temperatures on the control panel gauges are correct.
S
6 - T
ECTION
ROUBLESHOOTING
Page 21
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