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• • <br /> 9 Troubleshooting <br /> 1 Service Messages, Causes and Solutions <br /> Service Messages Causes Solutions <br /> •The pumps could have sediment • Turn OFF the pH Control. <br /> WARNING I <br /> buildup in the poppet valves. Disconnect the Inlet and outlet <br /> fittings of the pump. Remove the <br /> If the Developer and Wash poppet valves and rinse them with <br /> pumps take more than 260 warm water or replace them.Turn <br /> seconds to reach LS5 pH Control ON. <br /> (Level Sensor 5) during the •The "Water Tank", "Dev Tank"and • Turn OFF the pH Control. <br /> normal operational cycle, 'Neutralizer Tank" inlets on the back Disconnect the tubing connected to <br /> the alarm will alert user of of the pH Control has a yellow inlet the"Water Tank", 'Dev Tank"and <br /> a potential problem with filter that could be clogged. 'Neutralizer Tank"fittings located <br /> the pumps. on the back of the pH Control. <br /> Clean or replace the yellow inlet <br /> filter.Turn pH Control ON. <br /> WARNING •No solution in Neutralizer tank. • Neutralizer solution has to be <br /> N added to the tank. <br /> pH OUt •f Range Pumps are not working properly. • Verify the Dev,Water and <br /> If the pH is below 6.0 or Neutralizer pumps are working and <br /> above 10.0,the alarm will clean or replace poppet valves. <br /> alert users the pH is out of •fellow inlet filter could be clogged. • Turn OFF the pH Control. <br /> range, Disconnect the tubing connected to <br /> the"Water Tank", 'Dev Tank"and <br /> 'Neutralizer Tank"fittings located <br /> on the back of the pH Control. <br /> Clean or replace the yellow inlet <br /> filter.Turn pH Control ON. <br /> •Probe defective. • Remove the probe from the <br /> Reaction Tank and put in buffer <br /> © solution to verify the calibration. <br /> •The ratio of Neutralizer to • Increase or decrease ratio depen- <br /> Developer is not correct. dent on the pH of solution. <br /> Contact Metallx if the pH Control continues to display the service message after troubleshooting the unit. <br /> Failing to contact Metalix may result in additional complications. <br /> Metafix pH Control Manual Page 17 <br />