A Nelson controller won't accept programming commands
My Nelson controller for my drip system was cutting off watering after 3 minutes even though it was set to water for 60 minutes. I cleared the controller using the commands in the product manual. Now no matter what I type in, the controller will not accept any entries. It is ''stuck'' on Prg with numbers indicating the sequence of the entry, like ''time'', ''date'', etc. how can I get the flashing numbers back to enter program values?????. I also changed the alkaline batteries for the unit. The unit is a Nelson Turf EZ Pro Jr 8300 model.
Re: A Nelson controller won't accept programming commands
I don't think there is a reset button on the controller. Try removing all of the AA batteries from inside the unit for a few seconds then re-inserting them... or if they might be running out of juice, replace them with fresh batteries. That should reset things for you. Or, maybe not.
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It is possible that themachine does not start off the cycle because there are errors or feedback fromthe inputs. For the program to start up the main program controller mustinitiate the INLET/PUMP MOTOR/DRAIN to workwhen it is commanded .If this does not happen then the voltage at thesepoints must be checked or the faultrelates to no voltage/drive from the controller. This means the controller is asuspect.Check howto remove the control panel: http://www.espares.co.uk/advice/dishwashers/a/3/1287/how-to-replace-a-hotpoint-dishwasher-fascia-p.html If thewater flows then the flow should be good, if not the inlet valve is bad or thereis dirt in the filter. Also check the flow at the inlet of the water line. Whatis most important for the motor to start functioning is that the door switchmust be ON when the door is shut or this will be an error for starting themotor. The water pressure must be good and the spraying must be seen to begood. If there is low pumping or pressure then the spray arms will not turnaround to inject with pressure. If sothe pump must be checked for clogging.To replacecheck this link:http://www.espares.co.uk/advice/dishwashers/a/3/1293/how-to-replace-the-spraying-system-on-a-dishw.html Finallyafter the wash the drain valve will be activated, the water is allowed to comein to rinse and then finally the drain valve/pump activated so as to drain offall the water.Make surethat a fault in any of the cycle will relate to the specified action, so checkthe command from the program module and then the executing device be it thevalve or motor or pump. Please check the link below:http://www.espares.co.uk/advice/dishwashers/a/3
Sounds like you need to get into the programming mode menu and reset it. I have a Miele CVA 4085 built-in coffee maker which had a similar problem to this and other problems where it gets locked into a state where it demands you empty the drip tray even though it is empty. In my case it was at the end of a cleaning cycle and refused to go on. Cutting power and restarting always had it return to the same state: Cleaning, empty drip tray.
I cleaned the contacts on the drip tray and at the back using the nail file, still nothing. Then I found a post on how to get into the programming menu, which on the CVA 4085 is this:
Open the door and switch off the power with the rocker switch on the top left.Wait at least 5 seconds.
Switch the rocker on then VERY QUICKLY close the door and hold the clear button for 5 seconds.
With your other finger touch the ON button then pull both fingers away at the same time.
Do 5 rapid presses of the clear button but hold your finger down on the last press and keep holding it down until the programming menu comes up.
Do not press the reset button that you see at the top of the menu (unless your German is quite good or you have access to Google Translate).
Scroll down until you find the reset cleaning button and select it. Once you have confirmed you can then exit programming mode by powering off.
It took me quite a while to get to this point, but at least I can now recognize the German word for drip tray.
Don't forget pressure relief valve as well. Small drip is acceptable though. Double check by-pass valves are in proper position as well. Thermostat if working properly would have to sense (feel) cooler water at it's location in order to re-ignite system, which makes me think, cooler water is circulating through there somehow.
Do you have the manual? Just program two zones for the 'A' program. Don't need B and C. Set the time, date and all that, then set the days you want to water to 'On' . Then set the zones you are using like 1 and 2 and put in the amount of time you want it to water, like 30 minutes. That's all there is to it! Let me know... I'll help you.