Troubleshooting: What to do when the nv value shows 0 and the probe is defective?

Contact:
My nv value shows 0, what can I do

Advisor:
Hello

Advisor:
I think the sensor is defective

Contact:
The sensor or do you mean the probe

Advisor:
Yes

Contact:
Thank you for the quick response

Advisor:
Did you order from us?

Contact:
Can the probe be repaired

Advisor:
No, no, not that type of probe

Contact:
Does the system still produce chlorine

Advisor:
A value of 0 is an indication of a faulty probe. You can do this, but I think you will always see 0 https://ph-redox-pool.com/gb/content/17-is-my-redox-probe-out-of-order