![]() The sensor MUST be clean and dry for this test to work, a wet or dirty sensor will always fail.Ģ) All 4 lights will flash and it will beep, a single light will show for 1 seconds and then the normal 15-20 second pump run at startup will begin.ģ) This light that is on one second is the optic sensor status, green means pass, yellow means it is marginal, red means it failed.Ĥ) For further confirmation, you can rerun this test with the sensor in water, in this scenario instead of a green light we should get a red fail light, a unit that passes both tests we can say with 90%+ certainty the sensor is working properly.Īssuming it passes the self test the issue is bubbles, optic sensors work by detecting the refraction of air vs water and make no differentiation between a bubble or being dry. The first test is to use the self diagnostic test on the Osmolator to verify the sensor is in working order.ġ) With the sensor completely wiped dry, plug in the controller. ![]() ![]() Siphon situation 3 is the most probable cause but note as shown in 4 that a loop will not solve it, the end of the hose must always terminate above the reservoir water level.Ģ) A sensor issue. Here are the usual causes-ġ) A siphon, if it is a siphon the issue will be seemingly random, it will tend to only occur when the reservoir is full and the water will fill to a level possibly above or just below the float. It is not likely to be a siphon assuming you are pumping to an all in one and the reservoir is below the tank (no sump). ![]()
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