Re: lamona hja 8704
The selectors on these are prone to this type of erratic behavior. Before you change it, spray it liberally with switch cleaner with the nozzle fitted. Unplug the small edge connector and get the nozzle in there. Then move the selector knob round and round while you are spraying; wait a couple of minutes for the solvent to evaporate, then reconnect and try it.
Cured 80{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} + doing this…..
Also the push button pads on the control panel break on their frame for a pastime. Look carefully at the buttons; they should all be the same height. If they are not, then remove the PCB assembly from the back of the control panel and take the PCB out of the button frame. The start button pivots will be snapped and possibly the tactile switch on the PCB may be displaced depending on the brutality of the customer. PCB and button frame are available separately.
Steve.