Hoshizaki FTC-120MDA, Руководство по обслуживанию

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4. CONTROLLER
[a] SERVICING CONTROLLER
1) When receiving a service call, ask the user to turn off the power supply and turn it back
on after 30 seconds, while watching the unit. This will reset the controller, and in some
cases normal operation will resume.
2) Keep the following in mind when servicing the controller:
* Check that the unit has been earthed properly. If not, the controller will not work properly.
* To get static free, always touch the cabinet (earth) before servicing. Electrostatic
discharge will cause severe damage to the controller.
* The controller and thermistor can be replaced separately.
* Do not drop the controller on the floor.
* The thermistor and pressure switch leads have a thin coating and are potentially
breakable. Do not tension the leads.
* The connectors must not be subjected to tension to prevent disconnection or breakage.
After servicing the controller, check for disconnected connectors.
* The thermistor is provided with single-wire leads. Do not bend or stretch them.
* Do not pinch or weigh down the thermistor and thermistor leads. The coatings may be
broken, resulting in a short circuit.