Problem-solving: Changing a faulty Redox probe for a swimming pool.

Client:
Hello, I changed a redox probe for a pool technology device and my client says that the probe does not exceed 280mV. What should I do? Is there a problem?

Technical Advisor:
One moment

Technical Advisor:
Do this test: https://ph-redox-pool.com/gb/content/17-is-my-redox-probe-out-of-order

Client:
Okay

Technical Advisor:
Give me the results. And then put the probe in the standard solution

Client:
I am not with my client, I will see with him to do this later in the afternoon

Technical Advisor:
Thank you

Client:
Should I write the results here?

Technical Advisor:
Yes

Client:
Okay, thank you. I performed the tests you told me but it starts at 250mV and doesn't move. Then when I put it back in the instrument holder, it starts at 94mV and takes time to rise the ORP

Technical Advisor:
With the salt, there is no reaction?

Client:
No

Technical Advisor:
Unfortunately, the probe is dead...

Client:
It is brand new from you

Technical Advisor:
We will replace it for you, it happens sometimes. Give me your name, we will ship it to you today

Client: