Single-phase thermostat LF L3444282

A thermostat maintains the water at the temperature the dishwasher needs to clean and sanitise. In professional machines, the water must reach and hold a set point high enough to dissolve grease, kill bacteria and evaporate quickly from plates and utensils. The thermostat senses the water temperature and switches the heating element on or off to keep it within the programmed range. Without this control, the water would either stay too cool to clean properly or overheat, wasting energy and risking damage to the machine and the load.

The operator does not set the thermostat directly; the dishwasher's control panel sends the target temperature to it. Once the machine is switched on, the thermostat compares the actual water temperature to the target and cycles the heating element until the two match. During the wash cycle, the thermostat continues to monitor and adjust, compensating for the cooler water added with each rinse and the heat lost when the door opens. The result is consistent cleaning performance, cycle after cycle.

This single-phase thermostat is built for the electrical supply common in commercial kitchens. It fits into the control circuit of the dishwasher, where it receives the temperature signal and sends the on-off command to the heating element. The range of 90-110 °C covers the temperatures used in most professional wash programmes, from standard cleaning to heavy-duty sanitising.

The thermostat is a direct replacement for the original part in the listed models. It connects to the existing wiring harness and mounts in the same location, so installation requires no modification to the machine. The brands it fits—ANGELO PO, DESCO, DIHR, HOONVED and LUXIA—include under-counter, hood-type, conveyor and pan-washing machines, as well as glasswashers and cupwashers.

Cleaning and upkeep follow from the thermostat's role. Because it is sealed and has no moving parts exposed to water, it needs no routine maintenance beyond checking that the wiring connections remain tight and free of corrosion. If the dishwasher fails to reach or hold temperature, the thermostat is one of the components to test.

This part is listed in the catalogue under dishwasher spares and temperature controls.