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LM2/LM3 Series
Troubleshooting Manual

Summary of Contents for Zodiac LM2 Series

Page 1: ...LM2 LM3 Series Troubleshooting Manual ...

Page 2: ...turn pump off prior to installing or removing any Clearwater cell Your pump filter system is operated under pressure and the pressure must be released before you begin work Please see your pump filter owner s manual for further instructions To avoid cell damage water pressure in the cell must not exceed 29 psi 200kPa PREVENT CHILD INJURY AND DROWNING To reduce the risk of injury do not permit chil...

Page 3: ...orinator cover check the following 1 Is the pool pump on 2 Is the chlorinator turned on 3 Do the indicator lights function If NO see Output Lights pg 8 9 If all of the above answers are YES there is no problem with the chlorinator Have the consumer bring a water sample to their dealer for analysis 4 Is the circuit breaker tripped see Circuit Breaker pg 4 5 LM2 Is the output cord attached to the ce...

Page 4: ...reaker 9 Reconnect ribbon wire connector to power PCB 10 Replace cover with 4 screws 11 Replace chlorinator on wall 12 Connect power supply Power Cord Power Cord Replacement 1 Disconnect power cord from power source 2 Remove chlorinator from wall 3 Remove 4 screws to remove cover 4 Disconnect ribbon wire connector from power PCB and set cover aside 5 Remove 3 Push on wire connectors and unscrew gr...

Page 5: ...e qualified electrician rewire chlorinator to 220V or determine why no voltage Replace circuit breaker see Circuit Breaker pg 4 Transformer receiving power circuit breaker OK continue testing 6 Test between A C 220V YES NO 7 Test between D E and E F Results should be as printed on transformer this varies for different models Depending upon the type of transformer this test may be done at the PC bo...

Page 6: ...breaker see circuit breaker pg 4 If breaker continues to trip replace PC board see pg 17 and circuit breaker see pg 4 Refer customer to a qualified electrician to troubleshoot power source Is there power at timer or switch YES NO Trace power through transformer see Transformer pg 9 Check touch pad PCB see Touch Pad PCB pg 15 Replace power PCB see Power PCB pg 17 Check for loose wires ...

Page 7: ...operly Recommend to customer to have water sample checked by dealer Add salt according to chart in Owner s Manual 1 Is salt level 4000 ppm YES NO Have qualified electrician wire to 220V 2 Is unit wired 220V YES NO 3 Does cell model size match power pack YES NO Replace with correct cell 4 The cell is nearing the end of its life Replace cell ...

Page 8: ... interfaced see pg 14 Check output setting run time of LM3 at controller remote pad Increase as needed If output and run time were adequate disconnect communication wire at LM3 touchpad LM3 now operates as a stand alone unit with the output buttons on the LM3 power pack controlling the operation If unit is less than 1 year old check the following Check touch pad PCB see Touch Pad PCB pg 15 Replace...

Page 9: ...ment 1 Disconnect power supply 2 Remove chlorinator from wall 3 Remove 4 screws to remove cover 4 Remove ribbon wire connector from power PCB and set cover aside 5 Disconnect from the three white plastic terminals all wires that lead to the transformer keep track of each wire location for reassembly 6 Remove screw from the center of each 4 way terminal and pull the PCB to the side 7 Remove the riv...

Page 10: ...ol equipment is repaired Is the blue sensor wire attached and in good condition YES NO Repair attach blue sensor wire end to sensor on cell Is there a bubble exposing the sensor inside the cell YES NO Replace Power PCB See pg 17 There is a flow related problem with the equipment Disconnect the sensor wire until pool equipment is repaired ...

Page 11: ...l see Cell pg 13 Add Salt Light and 1 or 2 Green Output Lights Are On Is salt level 4000 ppm or higher YES NO On new unit chlorinator is wired 110V Have qualified electrician wire chlorinator to 220V Add salt according to chart in Owner s Manual Cell is nearing end of life Replace cell see Cell pg 13 Note The LM3 may have the check salt light on at low output If salt levels and water temperature a...

Page 12: ...um Build up on Cell Is chlorinator reversing polarity properly YES NO Check touch pad PCB see Power PCB pg 17 Clean Cell Remove cell and turn over ports up For LM3 use a plastic vessel and only cover plates with solution Use a solution of 10 parts water to 1 part muriatic acid stronger solutions will damage the cell and void warranty Pour solution into up turned cell and let sizzle for several min...

Page 13: ... the warranty Pour solution into up turned cell and let sizzle for several minutes If scraping is needed use a soft object like a popsicle stick no metal Repeat soaking as needed 6 Rinse with fresh water and reattach cell 7 Place cell over unions and hand tighten 8 Attach output wires interchangeable and sensor wire to cell 9 Open any applicable valves 10 Start pump and check for leaks Replace the...

Page 14: ...able connection 2 Turn the power to the LM3 ON via the controller 3 Set the LM3 chlorine output to minimum one Amber LED via the OUTPUT button on the front panel 4 Press the LM3 SERVICE button down for at least 20 seconds while observing the green SUPER CHLORINATE LED The LED will flash momentarily either 1 2 or 3 times then will go out for approximately 5 seconds 5 Continue to hold the SERVICE bu...

Page 15: ... power PCB will NOT need to be replaced LM3 Interfacing with Controller Reconnect wire and follow Interface Instructions on page 14 1 Disconnect ribbon wire connector of new touch pad PCB and set aside 2 Replace power PCB see Power PCB pg 17 3 Attach original ribbon wire connector to power PCB 4 Replace cover with 4 screws 5 Replace chlorinator on wall 6 Turn on power supply 7 Interface if needed ...

Page 16: ...air kit is used but the shunt on the board must be changed The shunt limits the amount of current going to the cell It can look like a U shaped wire or a ceramic block After removing the failed PC board from the LM2 15 or LM3 15 disconnect the shunt from the failed board and exchange it with the shunt on the replacement board This will insure the proper output for the unit For PC board replacement...

Page 17: ...wise to lock in position 10 Replace 3 triac Screws A B and C and tighten securely special insulating washer and pad on screw C MUST be in place 11 Transfer wires one at a time to avoid misplacement 12 Check to see if jumper is in place on new power PCB if missing use jumper from old PCB Jumper pin eliminated on LM2 manufactured after 2003 and all LM3 models 13 Reconnect ground clip 14 Attach ribbo...

Page 18: ...If the triac screws are NOT tight the power PCB will overheat and be damaged It is also imperative to have screw C insulated with the special washer and pad This special washer and pad insulates this triac tab while still allowing heat to transfer Triac Screws A B C Note that screw C has an insulating pad and washer that MUST be replaced when the PC board is changed These screws must be tight in o...

Page 19: ...21 Transformer cables No Part Description 16 W052031 Transformer cables 17 W000551 Washer s proof 18 W000681 Earth screw 20 W000021 Cord grip grommet 21 W000661 Cord grip grommet 22 W111071 Circuit breaker 23 W193201 Output cable 24 W012161 Mains panel 26 W051411 Input cable 27 W001161 Flat washers transformer 28 W050021 Heatshrink black 29 W051181 Heatshrink blue 30 W140101 Sensor clip 31 W082241...

Page 20: ...LM3 Cell Housing 33 W041101 Reducing Bush white No Part Description 1 W000131 Pop Rivet 2 W001091 Black PCB Standoff 3 W222091 LM2 and LM3 PCB assembly 4 W082241 Filter PCB For Transformer 5 W175981 LM3S Control Label 6 W082641 LM3S Control PCB 7 W000651 Insulation Kit 8 W001161 Flat Washers Transformer 9 W000351 M3 X 8mm Screw 10 W052031 Transformer Cable white 11 W052021 Transformer Cables orang...

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