I Displays - Zodiac pH expert Manual De Instalación Y De Uso

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5.2 I Displays

Message
"Level Low"
"OFA Alarm"
"OFA Stop"
"OFA Test"
"Filtering"
"4pH Sensor Fail"
or
7pH Sensor Fail"
"Parameter Error"
If the problem conti nues, contact your retailer.
16
Possible causes
• Corrector product container
empty
• Floater blocked
• Level sensor cut off
First step of the acti vated over
feed safety mechanism (ti me >
75%)
Second step of the acti vated
over feed safety mechanism
(ti me = 100%)
pH sensor measurement test if
the "OFA Stop" was acti vated
during the previous fi ltering
cycle
• Filtering stopped
Incorrect connecti on
• Buff er soluti on defecti ve
Problem on sensor's porous
coati ng and/or dirt deposits
The sensor is worn
The sensor is electrically
charged
Parameter error
Soluti ons
• Replace the corrector product container
• Check that the white fl oater on the sucti on
cane is in working order
• Change the sucti on cane
• Press
to stop the alarm
• Check the sensor and/or the pH in the pool
• Press
to stop the alarm
• Check the sensor and/or the pH in the pool
Wait for the end of the procedure (1 hour)
then check the sensor and/or the pool pH
level
• Start and/or check the fi ltering
• Check the electrical connecti ons
Check that the soluti on used is pH7 or pH4
Take a new pH7 and/or pH4 buff er soluti on
Check the pH of the buff er soluti on with an
electronic pH meter
Restart calibrati on
Check that the pH sensor bulb is not
damaged and that it did not dry outside the
water
As a last resort, clean it by dipping the
sensor in a 10% hydrochloric acid soluti on for a
few hours
Check that the sensor's porous coati ng is in
good conditi on (wash the sensor with an acidic
soluti on)
• Replace the pH sensor
Rinse the sensor with clean water
Do not wipe the sensor with a cloth or
paper, shake it gently
• If the problem persists, replace the pH sensor
• Press
to cancel the error
• Replace the printed circuit board

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