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