What to do if my Primus MB66 keyboard buttons aren't working?
If your Primus Scrubber is not responding when you press the keyboard buttons, here are some things to check: * Make sure the input connector “A” is securely connected and inspect the wiring between the connector and the key-switch. * Ensure the key switch is set to “Run mode.” * Verify that the connector “K” of the keyboard is properly connected.
How to improve the display brightness on a Primus MB66 Scrubber?
If the display on your Primus Scrubber is illuminated but hard to read, adjust the brightness setting in the Configuration Menu until the display is clear and bright.
Why is the drum not turning in my Primus MB66 Scrubber?
If the drum in your Primus Scrubber isn't turning and no error message is displayed, check the following: * Inspect the belt for any breaks and check its tension; replace or adjust as needed. * Check the motor voltage applied. * Assess whether the motor is still functional. * Check the inverter.
How to resolve a 'Heating Failure' error on a Primus MB66?
If you're encountering a 'Heating Failure' (Failure 13) error on your Primus Scrubber, check if the heating contactor is activated. If it's not, repair the wiring or replace the contactor.
What causes outputs to not activate when starting a program on a Primus MB66 Scrubber?
If you start a program on your Primus Scrubber, but the outputs aren't activating, ensure that connectors “R” and “Q” are correctly connected and not inverted. Pin “Q10” must be supplied with 220Vac when the door is closed.
How do I fix a wrong water level issue on my Primus Scrubber?
If you're experiencing a wrong water level issue with your Primus Scrubber, make sure the programmed water levels are correct and that the right machine type is selected in the Configuration Menu. You can reinitialize standard water levels by programming new values or reloading the Standard Wash programs.
What should I do if my Primus MB66 shows an 'Overfill Failure'?
If your Primus Scrubber displays an 'Overfill Failure' (Failure 12), the water inlet valves might be broken. Try cleaning or replacing the water inlet valve diaphragms.
How to troubleshoot a 'Fill Failure' on a Primus Scrubber?
If you're facing a 'Fill Failure' (Failure 11) on your Primus Scrubber, start by checking if the external water valves are open. If they are closed, open the water inlet valves to allow water to flow into the machine.
What to do if my Primus MB66 displays a 'Too Hot' error?
If your Primus Scrubber shows a 'Too Hot' (Failure 15) error, verify that the correct water inlet valves have been programmed. Ensure you're programming both hot and cold water inlet valves for the wash sequence.
What to do if my Primus MB66 Scrubber displays 'Unload' and 'Door is Open'?
If your Primus Scrubber displays 'Unload' and indicates that the 'Door is Open', check if the “Door Switch” is still closed. If the “Door Switch” is broken, replace it.
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