Diagnostic and Replacement of a Faulty pH Probe: Practical Guide

Hello. When I place my probe in a pH 7 solution while the phileo is set to 7.4, the phileo receives the command to inject PH-. It should be the opposite. When I press the selection button for more than two seconds to calibrate my probe, the 7.2 and 7.6 lights flash along with the two red arrows. My pH7 solution is new, so I suspect the probe. What do you think?

Hello, try this: https://ph-redox-pool.com/gb/content/16-ma-sonde-ph-est-elle-hors-service-

IS MY PH PROBE OUT OF SERVICE? How can I read the pH value on the phileo?

Look at the lights.

OK, I will do that and come back.

When I put it in a glass of tap water with a pH of around 8, the two red arrows started flashing. When I poured white vinegar, the left arrow lit up instead of the right one. The probe is from 2019. To me, it's going haywire.

Yes, it's the probe.

Is this the one I should order? https://ph-redox-pool.com/gb/ccei/50-pH-Probe-for-PHILEO-LT.html?gclid=CjwKCAjwvpCkBhB4EiwAujULMq91-evaNWEYfXb_-FMW230FYEkCOpi8DW8x02FeSZtpyRZVcs0xERoCnr4QAvD_BwE

That's the one.

Where can I find the hibernation solution?

pH7. https://ph-redox-pool.com/gb/pool-buffer-calibration-solution/1650-ph7-calibration-and-winterization-kit.html

OK. Thank you.

You're welcome, feel free to contact us again! Have a great evening.

To install the new probe, do I need to calibrate it or is it done at the factory?

You need to calibrate it because it depends on the probe and the device.