Lektro-Vend Combo Series, Service Manual

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SAFETY SWITCH OPERATION
Operation and Testing
The international control board incorporates a Health Safety sensing system. If the temperature inside the
cold food compartment reaches 45 degrees or higher, during normal operations or there is a loss in power,
the control board will not allow any cold food to be vended (all of the H selections). If this condition exists “Make
Another
message will be displayed when the customer tries to vend a cold food selection.
The control board also incorporates a timer which allows the cold food box 30 minutes to cool down below
45 degrees before the Health/Safety system becomes active. At the initial start-up of the machine or after an
over temperature condition has occurred the Health/Safety switch timer must be set manually. But for normal
food loading and servicing the Health/Safety switch timer is automatically reset when the main door is closed.
To manually reset the Health/Safety switch for the 30 minute timer:
First open the main door.
2. the Mode button to go into the service mode, then press the mode button again.
3. The health control is now reset and the timer will start running when the front door
of
the machine is closed.
If power is lost or the temperature inside of the cold food area is above 45 degrees the health control will
have to be manually reset so it will be necessary to repeat the above steps. Under normal operation when
a person comes to load the machine it will not be necessary to manually reset the health control timer.
To test the health control sensor and make sure that the system is functioning properly do the following to
a machine that has been operating for at least one hour, note that is normally a two person operation.
Open the main and cold food doors.
Remove one half of the bottom tray.
Rotate the carrousel until you are able to reach the health safety sensor which is located in the lower left
hand corner of the cold food compartment extending out in front of the evaporator fan.
Close the
doors
and then vend the bottom selection on the cold food side.
Reach in and hold the probe in your hand to warm it above 45 degrees. Then remove your hand and allow
the door to close completely.
Try and vend another cold food compartment. When the message MAKE ANOTHER SELECTION is
displayed you know that the health safety switch has kicked out and will not allow another cold food vend.