Jandy TruDose Installation And Operation Manual page 23

Jandy TruDose Chemical Controller
® TM
Problem
ORP alert LED
blinking
(ORP is lower than
390 mV or higher than
910 mV)
Display and LEDs off
Feeder not operating
Flow LED off
pH alert LED ON and
"Er1" displayed on the
LCD screen
(pH overfeeding
alert ON, setpoint
not reached after 60
dosing cycles)
ORP alert LED ON and
"Er2" displayed on the
LCD screen
(ORP overfeeding
alert ON, setpoint
not reached after set
chlorination time)
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Installation & Operation Manual
Possible Cause
Problem with chlorine production.
Problem with chlorine supply.
Controller undershooting set level.
No power supply.
Inadequate flow.
Chemical feeder is empty
Dose time too low
Sensor malfunction
Alkalinity too high
Feed pump malfunction
Saltwater chlorinator issue
Overfeed alert time too low
Sensor malfunction
Cyanuric acid concentration too high
Daily filtration time too low
pH too high
ENGLISH
Corrective Action
Verify chlorine was not manually added.
Verify the saltwater chlorinator powerpack
and cell work properly.
Check for proper valve positions and leaks
in chlorine lines.
Check circuit breaker.
Check flow through flow cell and controller.
Verify all appropriate valves are open.
Verify there is sufficient pressure in the
line. Close right side valve slightly if
necessary.
Verify the flow switch is securely
connected to the controller terminals.
Both the pH and ORP dose outputs are
disabled if the green flow LED is not
illuminated.
Refill the feeder
Increase pH dose time (seconds)
Calibrate, clean or replace pH sensor
Check and adjust alkalinity
Repair the feed pump
Check the saltwater chlorinator and its cell
Increase overfeed alert time
Calibrate, clean or replace the ORP sensor
Lower cyanuric acid concentration in the pool
Increase daily filtration time
Please refer to "pH level is too high" section
Page 23