Check the sub-cooling.
Check that the service valves are fully open.
If equipped, check the sight glass for flashing
.
Head Pressure Too Low
Check unit for refrigerant leaks.
Perform pump-down procedure to verify the valves are pumping.
If equipped, check
if sight glass is flashing or showing low charge.
Low Suction Pressure
Check that evaporator fan motors are working.
Check that the air low is being directed through the evaporator coil.
(All interior panels and must be in place as well as the evaporator fan
shroud.)
Check that the Evaporator Coil is clear of ice and debris.
High Suction Pressure
Check for refrigerant being overcharged.
Check for refrigeration restrictions.
Perform pump-down procedure to verity the valves are pumping.
Adjust Temperature Control to a lower set point (1= Warmest 9= Coldest)
Thermometer Not Reading
Correctly
Indicates the approximate temperature of the interior of the case. The sensor is
located at the top of the case next to the infrared heater. It does not indicate well
or food temperature.
Food In Well Not Held
Above 140°F
Is the well turned on? Each food well has its own mechanical thermostat
which can be turned off and adjusted individually.
Each food well has its own mechanical thermostat which will control them
individually.
Check that the slots along the front and the rear of the case display floor are
not blocked.
Check to see that the overhead warmers are on. (120V, 60W coated bulbs only)
Wells must be preheated prior to placing product into case.
Product temperature entering the case has to be =>170°F.
Check that the front glass is closed tightly and that the rear doors are in
place.
Food Dried Out
Check the humidity switch is turned on and the humidity element is working.
Check the placement of the humidity pan, which is located underneath the
interior display deck for proper positioning or potentially missing from being
removed during cleaning.
Check the float for auto-fill if water line is hooked to the case or water can be
manually added to the humidity pan located below the interior display deck.
If adding water into a food pan for even more humidity, no more than one
food pan should have water in it or excessive condensation may occur.
Food Too Warm
Adjust temperature for the appropriate well to a cooler setting.
NEW BAKERY AND SERIES 90 – HOT DELI TEMPERATURE AND HUMIDITY ISSUES
FOR MORE DETAIL REFER TO THE OWNER’S MANUAL
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