10
Control Panel Indicator Lights
Chlorine Output
A series of six lights indicates the chlorine output setting of the LM3 – more lights equals greater chlorine
production. The light does not show the actual chlorine reading in the pool. Use of a test kit is required to
confirm the Free Chlorine reading of the pool water. Note: The output lights will not increase if the salt
level is too low (below 2900ppm) and/or the water is too cold (below 65˚).
The yellow power light flashes for a few minutes when reversing polarity to self clean, indicating no
output during this time. The unit reverts back to its previous output setting when cleaning is complete.
Super Chlorinate
This light indicates that the Super Chlorinate feature has been selected. It will turn OFF when the Super
Chlorinate period has ended.
Check Salt
The Check Salt light will come on at any salt level between 3000 ppm and 4000 ppm depending on mains
voltage, water temperature (below 65˚) & the salt level. This is not a fault but a precaution to ensure the
salt level is never too low. The Check Salt light may also come on if the cell is scaled, indicating manual
cleaning is required. When the light is on, the chlorine output light may not reach maximum. Once the low
salt condition is corrected, the output will function again. Note: Operating the LM3 at reduced salt levels
may shorten the life of the cell.
No Flow
If light is ON, it indicates no water flow in the cell. The chlorine output will also turn off in this instance.
Startup
Before starting the LM3 system the required amount of salt (based on pool size) must be added to the
pool. (See Salt Requirements chart in Maintenance). Note: On new plaster pools, wait 4 weeks before
adding salt. During this period, unplug the chlorinator output cable and manually chlorinate the pool.
When switched on for the first time, the chlorinator goes through an initialization sequence, indicated by
the amber LED being illuminated. After a short period the LED will switch off and the chlorinator will begin
normal operation.
The chlorinator defaults to the ‘zero output’ state. The user can then select the desired output level. Start
the operation of the LM3 at maximum output.
The micro-processor in the LM3 retains the chlorine output and super chlorinate settings, and the polarity
reversal time in memory when the unit is turned off, unless the setting was changed less than one minute
before turning off.
Operating Tips
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Run the filtration and chlorination system for at least 6 to 8 hrs per day.
During very hot weather it may be necessary to run the system for additional hours. In winter, where
pools remain open, run the filtration system for about 4 hours per day. Shorter periods will help
lengthen the life of the cell electrodes.