In daily work, kitchen equipment maintenance personnel often encounter such problems as dishwashers. Today we will briefly sort out the general process and ideas in the dishwashing process of the dishwasher.
First, the working principle of the dishwasher:
Our common commercial dishwashers, whether they are cover-type, basket-type, oblique-insert dishwashers, or flat-top dishwashers, usually generate mechanical water pressure through a pump, which acts on the surface of tableware, and is used in cleaning agents. With the auxiliary effect of washing, the dishes are washed to achieve the cleaning effect.
Second, the working process of dishwasher:
For the dishwasher to work properly, the conditions that need to be met are that it must have a normal pressure water supply, meet the required power, and that the dishwasher itself functions normally. Under the premise that the external power supply and water supply of the dishes are normal, we need to use the dishwasher. We must first close the door of the dishwasher and turn on the power of the dishwasher. At this time, if the function of the dishwasher is normal, the machine will start to add water to the dishwasher washing tank. After the water level reaches a preset value, the filling process will automatically stop; then the heating tube will start to work and warm the water in the tank. When the water temperature of the water tank reaches a preset value, the dishwasher enters a standby state, and the work of the dishwasher can be started at any time. The next step is to start the run button or switch, and the machine will enter the normal working state.
There. Judgment ideas for dishwasher failure:
When the external power supply and water supply conditions of the dishwasher are met, if the dishwasher does not work properly, the problem lies with the machine itself. For different failures, different judgments must be made. The following points may be listed.
1. The dishwasher does not work. We know according to the above process that the first step of starting the machine must be the power display board or the indicator light to show that the machine has power. If not, check the circuit.
2. If there is electricity, fill the machine with water during the next work. The condition for water injection is that all control switches are normal and in normal working state. If water is not injected, we need to check: Are the door magnetic switches, limit switches, overload switches, water level switches, etc. not closed or abnormal? Is it damaged? Is the water injection component faulty: solenoid valve, pressure reducing valve, etc.?
3. After the water level of the water tank is normal, the water in the tank will be heated during the next work of the machine. If this process fails, you need to check: Is the heating tube normal? Is the temperature control unit normal? Is the water level control switch normal? Is the thermal protection switch normal? Does the power contactor supply power normally?
4. If the above preparatory work can be completed normally, the machine will enter the standby state before work. Turn on or press the start switch or button. Under normal circumstances, the machine should start the dishwashing work and enter the normal operating state. The spray pump starts and the conveyor runs. If there is a problem, a specific inspection is required, including: Is the pump normal? Is the control normal? Is the drive motor normal? Are the mechanical components normal?
For different models, there may be other component parts. As long as you master the machine's working process and comprehensive thinking, I believe that we can find the problem and finally solve the problem.
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