5-8
• Verify that component box components (i.e. computer/controller, transformers, relays, interface
boards, etc.) are in good condition and free from oil and other debris. Inspect the component box
wiring and verify that connections are tight and that wiring is in good condition.
• Verify that all safety features (i.e. drain safety switches, reset switches, etc.) are present and
functioning properly.
• Verify that the frypot is in good condition and free of leaks and that the frypot insulation is in
serviceable condition.
• Verify that wiring harnesses and connections are tight and in good condition.
Built-In Filtration System
• Inspect all oil-return and drain lines for leaks and verify that all connections are tight.
• Inspect the filter pan for leaks and cleanliness. If there is a large accumulation of crumbs in the
crumb basket, advise the owner/operator that the crumb basket should be emptied into a fireproof
container and cleaned daily.
• Verify that all O-rings and seals (including those on the Power Shower if applicable and on the
quick-disconnect fitting) are present and in good condition. Replace O-rings and seals if worn or
damaged.
• Check filtration system integrity as follows:
− Verify that filter pan cover is present and properly installed.
− With the filter pan empty, place each oil return handle, one at a time, in the ON position.
Verify that the pump activates and that bubbles appear in the cooking oil/shortening (or that
gurgling is heard from the Power Shower port if applicable) of the associated frypot.
− Close all oil return valves (i.e., place all oil return handles in the OFF position). Verify
proper functioning of each oil return valve by activating the filter pump using the lever on
one of the oil return microswitches. No air bubbles should be visible in any frypot (or no
gurgling should be heard from the Power Shower ports if applicable).
− Verify that the filter pan is properly prepared for filtering, then drain a frypot of oil heated to
350°F (177°C) into the filter pan and close the frypot drain valve. Place the oil return handle
in the ON position. Allow all cooking oil to return to the frypot (indicated by bubbles in the
cooking oil or on units with Power Showers, cessation of oil flow from the Power Shower).
Return the oil return handle to the OFF position. The frypot should have refilled in no more
than 2 minutes and 30 seconds.