Spa Builders SC-CF Service Manual
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Spa Builders SC-CF Service Manual

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CLEARLY ADVANCED SPA SYSTEMS!
™
S
ERVICE MANUAL
SC-CF & SC-MP SPA SYSTEMS TROUBLESHOOTING
VISUAL STEP- BY-STEP GUIDE & MORE!
TAKING OVER THE WAVES!

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Summary of Contents for Spa Builders SC-CF

  • Page 1 CLEARLY ADVANCED SPA SYSTEMS! ™ ERVICE MANUAL SC-CF & SC-MP SPA SYSTEMS TROUBLESHOOTING VISUAL STEP- BY-STEP GUIDE & MORE! TAKING OVER THE WAVES!

  • Page 2: Table Of Contents

    Table of Contents Topics covered in this manual are as follows: Power & Ground Check Electrical Wiring GFCI Programming Jumper Positions Error Conditions 3 Flashing Dots Appearing On Keypad Display 3 Flashing Dots & LED Displayed Display Is Flashing Wrong Temperature Appearing On Keypad Display Troubleshooting Nothing Seems to Work! Spa Does Not Heat!
  • Page 3 In an attempt to make this manual as useful as possible, it has been presented in two formats. Problem-solving solutions are described with Troubleshooting Flow Charts and also with Step-by-Step Procedures. The two formats together should provide an overall complete explanation, with flow charts providing an overview of specific problems, and step-by-step procedures giving more detailed information.
  • Page 4 Top side control (keypad) Pressure Switch SC-CF / SC-MP complete pack Regulation sensor Spa Builders Systems Group sells Professionnal Repair Kits that include everything needed for SC-CF and SC-MP spa pack servicing. For more information, go to the last page of this manual.
  • Page 5 SC-CF & SC-MP Service Manual...
  • Page 6 All the procedures and instructions described in the next pages are applicable to SC-CF and SC-MP systems equipped with one of the following keypads. Please note that the K-9 model is used througout this manual to illustrate specific actions.

  • Page 7: Electrical Wiring

    1• Carry out a visual inspection to check for signs of miswiring. Refer to supplied wiring diagrams. Call an electrician if necessary. For 240 VAC systems: Electrical Box GFCI Pack Terminal Block For 120 VAC systems: Pack Terminal Block SC-CF & SC-MP Service Manual...

  • Page 8: Gfci

    Replace defective component. If GFCI is still tripping, disconnect incoming There is Replace power line. a problem GFCI. with the Is GFCI cable. still tripping? Call an electrician! Replace Spa Pack if GFCI is still tripping. SC-CF & SC-MP Service Manual...
  • Page 9 Neutral of GFCI must be connected to neutral bus. Neutral from spa must be connected to breaker. From electrical box To spa 2• If it is not, verify GFCI wiring diagram and reconnect it. SC-CF & SC-MP Service Manual...
  • Page 10 2• If GFCI still trips, replace Spa Pack. 4• If GFCI stops tripping, replace GFCI. If it stops tripping, reconnect one component at a time until GFCI starts tripping. Replace defective 5• If GFCI trips again, replace component. Spa Pack. SC-CF & SC-MP Service Manual...

  • Page 11: Jumper Positions

    Certain parameters can be modified by changing the position of jumpers on the board. To access jumpers, first remove SC-CF or SC-MP power box cover. In some cases, jumper functions may differ from the following. Please check wiring diagram on power pack box cover to verify specific functions for your pack.
  • Page 12 Verify water valves. Replace pressure Replace If problem persists, switch cable. pressure replace Spa Pack. switch Try to adjust if problem pressure switch. persists. If problem persists, replace Spa Pack. Replace pressure switch if problem persists. SC-CF & SC-MP Service Manual...
  • Page 13 (or start circulation pump properly connected to pressure by increasing the set point) and switch and board. test continuity on pressure switch. 4• If you detect continuity, go to step #10. SC-CF & SC-MP Service Manual...
  • Page 14 Remove plastic cover and replace cable. (Refer to "How to Adjust the Pressure Switch" section of this 9• Replace Spa Pack if error condition manual.) still persists. (Refer to "How to Replace the Spa Pack" section of this manual.) SC-CF & SC-MP Service Manual...
  • Page 15 Spa Pack" section of this just pressure switch, if it is a new manual.) installation (less than two years) or replace it. (Refer to "How to Adjust the Pressure Switch" section of this manual.) SC-CF & SC-MP Service Manual...
  • Page 16 Verify if temperature probe is properly connected. If error condition still If so, replace probe persists, replace Spa Pack. and reset breaker. Replace Spa Pack if error condition still persists. SC-CF & SC-MP Service Manual...

  • Page 17: Flashing Dots & Led Displayed

    If it's not, verify if hi-limit probe is properly connected. Probe connector pins Try to clean probe connector pins. Even a small coating of film can cause a bad connection. Reconnect probe and reset breaker. SC-CF & SC-MP Service Manual...
  • Page 18 2• Make sure temperature probe is properly connected. If it is, replace probe and reset breaker. 3• Replace Spa Pack if error con- dition still persists. (Refer to "How to Replace Spa Pack" section of this manual.) SC-CF & SC-MP Service Manual...
  • Page 19 SC-CF & SC-MP Service Manual...
  • Page 20 "Heater" indicator spa cools filter cycle. on keypad display down (add should disappear. cold water Lower if needed). filter cycle Do you get a duration. 240 VAC reading between two heater wires on the board? SC-CF & SC-MP Service Manual...

  • Page 21: Display Is Flashing

    3• Remove plastic cover. With a volt- meter, read voltage between the two heater wires on the board. 4• If you do not read 240 VAC, pump may be overheating water during filter cycle. Shorten filter cycle duration. SC-CF & SC-MP Service Manual...
  • Page 22 2• Make sure temperature probe is properly connected. If it is, replace probe. 3• Replace Spa Pack if display is still flashing. (Refer to "How to Replace Spa Pack" section of this manual.) SC-CF & SC-MP Service Manual...
  • Page 23 SC-CF & SC-MP Service Manual...
  • Page 24 (even a small coating of film may cause a bad connection). Reconnect the probe. Replace probe with a spare and verify if problem is solved. If it is, replace probe with spare. Replace Spa Pack if problem persists. SC-CF & SC-MP Service Manual...
  • Page 25 4• Replace Spa Pack if problem located in spa) is properly persists. connected. Probe connector pins 2• Disconnect probe connector and clean probe connector pins. Even a small coating of film may cause a bad connection. SC-CF & SC-MP Service Manual...
  • Page 26 Lower Set Point at 60°F and turn pump off. Short two pressure switch terminals with a jumper cable. Replace Adjust or replace Spa Pack. Does FLC error condition persist? pressure switch. SC-CF & SC-MP Service Manual...
  • Page 27 "Pump does not Work" section. 2• Clean filter and check for air blockages, closed trap valves or anything that could be restricting water flow. 3• Verify if pressure switch cable is properly connected to pressure switch. SC-CF & SC-MP Service Manual...
  • Page 28 (Refer to "How to Adjust the Pressure Switch" section of this manual.) 6• If FLC error condition does not occur, problem may be either with switch cable or board. Replace Spa Pack. SC-CF & SC-MP Service Manual...
  • Page 29 SC-CF & SC-MP Service Manual...
  • Page 30 Does FLO error condition occur when pump is on? Replace Adjust pressure Spa Pack. switch. Replace pressure switch if FLC error condition persists when you start or stop pump. SC-CF & SC-MP Service Manual...
  • Page 31 1• Disconnect pressure switch cable condition does not occur. on pressure switch. If FLO error condition occurs when pump is started, adjust pressure switch or replace it. (Refer to "How to Adjust the Pressure Switch" section of this manual.) SC-CF & SC-MP Service Manual...
  • Page 32 If Prr error condition occurs (potential regulation sensor problem), follow Troubleshooting Flow Chart below to identify the problem: Make sure to use the right probe! MC-CF probe does not work on a SC-CF or SC-MP spa pack. Probe wires should be in this order: PIN #4...
  • Page 33 Press any key after each step to reset the system. Power may remain On. Note: Make sure to use the right probe! MC-CF probe does not work on a SC-CF or SC-MP spa pack. Probe wires should be in this order: Probe connector...

  • Page 34: Troubleshooting

    HL Flow Chart If HL error condition occurs (potential hi-limit probe problem), follow Troubleshooting Flow Chart below to identify the problem: Press any key after each step to reset the system. Take water temperature with a digital thermometer. Is water temperature 119°F or higher? Are you getting correct water temperature reading on the display?
  • Page 35 If HL error condition persists, replace Spa Pack. 3• If reading is 119°F or higher: Proceed to following page if keypad display shows correct temperature. Proceed to page 36 if keypad doesn't show correct tempera- ture. SC-CF & SC-MP Service Manual...
  • Page 36 3• Remove plastic cover. With a voltmeter, read voltage between the two heater wires on the board. 4• If you do not read 240 VAC, pump may be overheating water during filter cycle. Shorten filter cycle duration. SC-CF & SC-MP Service Manual...
  • Page 37 Use foam to isolate probe from cold air if that is the problem. 2• Make sure temperature probe is properly connected. If it is, replace probe. 3• Replace Spa Pack if HL error condition still persists. SC-CF & SC-MP Service Manual...

  • Page 38: Nothing Seems To Work

    1 & neutral? and black wire must be on top Is there a of the plug. jumper cable connected between line 2 & neutral? Replace Spa Pack if there is still nothing on keypad display. SC-CF & SC-MP Service Manual...
  • Page 39 You should get ≈120 VAC. You should get ≈120 VAC. 3• Measure voltage between 2• Verify that there is a jumper cable line 2 and neutral. connected between line 2 and neutral. You should get ≈120 VAC. SC-CF & SC-MP Service Manual...
  • Page 40 If you are getting good voltage readings, but nothing seems to work, carry out the following tests to correct the problem: 1• Verify if keypad is correctly connected to the board. 2• If nothing works, replace Spa Pack. SC-CF & SC-MP Service Manual...
  • Page 41 SC-CF & SC-MP Service Manual...
  • Page 42 Are heater nuts Replace connected temp. probe properly with spare. to the element? If water temp. still doesn't Try tightening nuts match temp. to element. on keypad display, replace Spa Pack. Still not heating? Replace element. SC-CF & SC-MP Service Manual...
  • Page 43 7• If spa is still not heating, replace Spa Pack. "Heater" indicator will be on when heater is on. It will flash if more heat has been requested, but heater has not yet started. SC-CF & SC-MP Service Manual...
  • Page 44 Replace board if you are not properly connected to the getting a reading of ≈240 VAC. element. If not, tighten nuts to the element. 3• If problem persists, replace the element. SC-CF & SC-MP Service Manual...
  • Page 45 SC-CF & SC-MP Service Manual...
  • Page 46 Pump 1 still not working! Measure voltage on the board for both speeds. Do you get a 240 VAC reading (or 120 VAC for a 120 VAC pump) for both speeds? Replace Replace Pump 1. Spa Pack. SC-CF & SC-MP Service Manual...

  • Page 47: Pump 1 Does Not Work

    5• If "Pump 1" indicator appears when "Pump 1" Pump 1 key is pressed, verify if pump indicator works in either speed. 3• Verify if "Pump 1" indicator appears on keypad display when you press Pump 1 key. SC-CF & SC-MP Service Manual...
  • Page 48 240 VAC pump: P12 & P18 120 VAC pump: P7 & P12 Your reading shoud be: ≈240 VAC for a 240 VAC pump ≈120 VAC for a 120 VAC pump SC-CF & SC-MP Service Manual...
  • Page 49 SC-CF & SC-MP Service Manual...

  • Page 50: Pump 2 (Or Blower) Does Not Work

    Replace blower fuse. Pump 2 still not working! Measure voltage on the board. Do you get a 240 VAC reading (or 120 VAC for a 120 VAC pump)? Replace Pump 2 Replace or blower. Spa Pack. SC-CF & SC-MP Service Manual...
  • Page 51 If Pump 2 or blower does not work, carry out the following tests to correct the problem: For SC-CF or SC-MP Dual-Pump Systems only! To increase the life of the relay, we use a "snubber" circuit on the pump relay.
  • Page 52 240 VAC pump or blower: P11 & P17 120 VAC pump or blower: P9 & P11 Your reading shoud be: ≈240 VAC for a 240 VAC pump or blower ≈120 VAC for a 120 VAC pump or blower SC-CF & SC-MP Service Manual...
  • Page 53 SC-CF & SC-MP Service Manual...
  • Page 54 If still not working, replace Spa Pack. Do you get a 12 VAC reading on light output on board? Replace spa Replace spa light socket. light fuse. Replace Spa Pack if light is still not working. SC-CF & SC-MP Service Manual...

  • Page 55: Light Does Not Work

    If it is, replace keypad. 6• If problem persists, replace Spa Pack. If not, replace Spa Pack. SC-CF & SC-MP Service Manual...
  • Page 56 120 VAC ozonator (or 240 VAC for 240 VAC) on the board? Is Pump 1 working? Replace Replace Spa Pack Refer to ozonator. if you still "Pump 1 does aren't getting not Work!" a voltage reading. section. SC-CF & SC-MP Service Manual...

  • Page 57: Ozonator Does Not Work

    The filter cycle will start immediately. 5• Check if Pump 1 is working. If so, replace Spa Pack. If Pump 1 is not working, refer to "Pump 1 does not Work!" section. SC-CF & SC-MP Service Manual...
  • Page 58 Troubleshooting Flow Chart below to identify the problem: Make sure to use the proper keypad: K-35 keypad with SC-MP spa pack. K-18, K-19 or K-9 keypad with SC-CF spa pack. Also refer to Jumper Section (p. 10) to see if outputs are set correctly.
  • Page 59 Make sure to use the proper keypad: K-35 keypad works with a SC-MP spa pack. K-18, K-19 or K-9 keypad works with a SC-CF spa pack. Also refer to Jumper Section (p. 10) to see if outputs are set correctly.

  • Page 60: Replace The Spa Pack

    How To Replace The Spa Pack When replacing a SC-CF or SC-MP spa pack, it is important to make sure to turn power off before proceeding. 1• Unplug Pump 1, Pump 2 (or blower) and ozonator connectors. 2• Remove 2 screws from front pack cover.
  • Page 61 How To Replace The Spa Pack When replacing a SC-CF or SC-MP spa pack, it is important to make sure to turn power off before proceeding. 4• Disconnect power input cables. Light Keypad Probe 5• Disconnect light cables, keypad 7• Disconnect heater ground and temperature probe con- cable.
  • Page 62 How To Replace The Spa Pack When replacing a SC-CF or SC-MP spa pack, it is important to make sure to turn power off before proceeding. 9• Slide the pack out of the heater 13• Reconnect light cables, keypad barrel.

  • Page 63: Adjust The Pressure Switch

    Turn pump off. The (3) flashing dots should not appear (restart procedure if (3) flashing dots appear). 5• When adjustment procedure is completed, apply Loctite 425 to the adjustment screw to secure it in place. SC-CF & SC-MP Service Manual...
  • Page 64 5• Turn pump off and wait 30 seconds. You should not see the three flashing dots. 6• If you see an error, restart the adjust- ment procedure. If you are not able to adjust the pres- sure switch, change it. SC-CF & SC-MP Service Manual...

  • Page 65: Wiring Diagrams

    Wiring Diagram (SC-CF) The wiring diagram below provides a general idea of SC-CF wiring, but it is important to note that it may not apply to all systems. The wiring diagram including on inside power box cover is the one to be used as main reference for the spa you are servicing.
  • Page 66 Green / Ground Black / Line Black / Line White / Com White / Com Fiber Box Pressure Switch Jumper Settings Refer to page 10 Voltage 120v Green Green / Ground Black / Line White / Neutral SC-CF & SC-MP Service Manual...
  • Page 67 Professional Repair Kit All you need in one case! Gecko's professional repair kit contains all you need to service and repair Gecko's line of spa packs. • Top side controls (keypads) • Temperature probes • Pressure switch cables • Flow switches •...
  • Page 68 120 V or 240 V power input COMPLETE SERVICE GUIDE WITH STEP-BY-STEP INSTRUCTIONS ON: J&J or AMP connectors GFCI Troubleshooting • Jumper Selection • Understanding & Correcting Heater connectors Error Conditions • System Malfunctions • Part Replacement Instructions Easy access to probes & switches •...

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