Washtech now offer two distinct control systems across their dishwasher range and understanding the difference helps you choose the right machine and know what to expect when it comes to running costs, repairs and daily operation. At EatTucker we sell and support the full Washtech range, so here is a plain-English explanation of how each system works.

The two control families

Washtech divide their range into two families. The X series covers the more straightforward models: XG, XV, XU, XM, XP, XL and AL8. The professional series covers the higher-specification models: GM, UD, M2, M2C and AL. Each family uses its own control system, and importantly, all models within each family share the same controls. This matters for technicians, for spare parts, and for venues running multiple Washtech machines.

X series controls: two PCB boards, simple and proven

The X series has evolved from fully electromechanical controls to a reliable hybrid system using two simple PCB boards. One PCB manages the timing of the wash cycle. The other manages temperature control. That is the entire control system.

Both boards are universal across every X series model, the same parts fit the XG glasswasher, the XV and XU undercounter machines, the XM and XP pass-through machines, and the larger XL and AL8. This means any Washtech technician will carry these parts as standard, and replacements are straightforward. Both PCBs are priced at under $300 each plus GST, making the X series one of the most cost-effective commercial dishwashers to own and repair over the long term.

In practice, X series undercounter models have two push buttons for selecting a 1 or 2 minute cycle. Pass-through models use a hood start with a selector switch for 1, 2 or 3 minute cycles. Simple, reliable, and easy for any staff member to operate with no training.

Professional series controls: touchscreen HUD and relay PCB

The professional series  GM, UD, M2, M2C and AL uses a more sophisticated control system designed to support the additional features these machines offer. The system has two components: a relay PCB and a touchscreen controller called the HUD (Heads Up Display).

The relay PCB handles all the heavy-duty electrical switching: heating elements, motor relays with soft-start capability to prevent power surges when pumps kick in, detergent pump solenoids and other outputs. It also receives all the inputs like temperature probes, door switches, water level sensors and more. This PCB connects to the HUD via a simple 4-wire cable.

The HUD is where all the intelligence sits. Washtech sourced this touchscreen unit from the dairy industry, where the demands for reliability, hygiene and robust construction are as high as in any commercial kitchen. The HUD displays the machine's current status, including temperatures and cycle selection, allows the operator to start a cycle if not set to automatic, and gives authorised users access to a wide range of configurable settings.

Features available through the HUD include EcoPower mode, which detects when the machine has been idle and shuts off unnecessary heating to reduce power consumption. You can restrict access so staff cannot change settings. With the right configuration in the settings, the machine can even be set to run a cleaning cycle automatically in the middle of the night. Like the X series PCBs, the same HUD and relay PCB are used across all professional series models, keeping spare parts straightforward and familiar for technicians.

Control panel positioning

On undercounter models in the professional series, the GM and UD, the HUD touchscreen is fixed in position on the front of the machine. On the pass-through models, the M2 and M2C touchscreen can be relocated to several positions on the machine, or even mounted remotely away from the dishwasher entirely. This is particularly useful in tight or custom kitchen layouts where the operator position is not directly in front of the machine.

Which control system is right for you?

If straightforward operation, low repair costs and simplicity are the priority, the X series is the right choice. If you need advanced features like EcoPower idle management, an assured rinse booster pump, fault diagnostics, flexible control panel positioning or compliance with the National Construction Code (in the case of the M2C), the professional series delivers all of that through its touchscreen control system.

If you are unsure which model suits your kitchen, call Sean on 0412 034948 or email sales@eattucker.com and we will point you in the right direction.