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Balboa manualtroubleshootingandservice reva. 1. Troubleshooting & Service for EL/VS Systems 60 Hz 1. Balboa’s Patented M7 TechnologyTOPSIDE CONTROL PANELThe control panel activates functions at the touch of a button.Each function will echo from the circuit board to the LCD ina corresponding manner. The panel will also display diag-nostic messages that enable the service technician to easilytroubleshoot the system.

• Coleman Hot Tub Instruction Manual
• Balboa Hot Tub Troubleshooting

ML700 Top Side PanelM7 TECHNOLOGYM7 is a patented Balboa technology that uses two sensorsinserted at the opposite ends of the heater element todetermine flow, dry fire conditions, etc. The two sensorslocated within the heater housing compare the inlet watertemperature with the outlet water temperature. It works nomatter which direction the water flows through the heater.The sensors in combination with specific software allow thespa to be controlled without the use of external pressureswitches, flow switches, or temperature sensors. Panel Construction VS501 with a Cut-a-way View of the Heater Sensor Sensor2.

Table of ContentsBalboa’s Patented M7 Technology.2Balboa Service Tools and Parts Checklist.5Important Information - Product Identification.6Troubleshooting & Servicing Spa and Electrical Equipment.7 G.F.C.I. Troubleshooting.8 If Correct Wiring is Verified.8 To Disconnect the Heater.8 Voltage Checks: Breaker Box, G.F.C.I. & System Box.9 Wiring Checks. 14 Spa Behavior - Start-up Information.

15 Priming Mode. 15 Heater Start up Information. 15Diagnosing M7 Topside Control Panels. 16 Checking the System Power Input Fuse.

19 ML Series Panels - For Use with EL and GL Systems. 21 ML900 Panel Operation. 22 ML700 Panel Operation. 23 ML550, 551, 554 Panel Operation. 24 ML200, 240, 260, 400 Panel Operation.

Coleman Hot Tub Instruction Manual

28 VL Series Panels - For use with VS and GS Systems. 32 VS/GS Panel - 300 & 500 Series and Operation.

Balboa Hot Tub Troubleshooting

34 EL and GL Series Mach 3 - Persistent Memory & Power Up. 38 EL - GL, about Persistent Memory. 38 Power Up Display Sequence, Software ID. 38 VS-GS Persistent Memory with VL Panels. 39 Testing the Circuit Board Output.

40 Balboa’s Quick TestTM Test Kit. 40 To Use the Balboa Quick Check. 40 Testing the Sensor Set. 41 Changing a System Circuit Board.

42 How to Remove a System Circuit Board. 42 How to Replace a System Circuit Board.

42 Removing the Heater Assembly from a Spa System. 43 Panel Message Reference Guide.

44 3. Diagrams (in alphabetical order)300/300F/500Z Series Panel.34500DZ Series Panel.34500SZ Series Panel.34Balboa QuickCheckTM Part No. 70002.40Ground-Fault Circuit Interrupter/Circuit Breaker (G.F.C.I.). 8120 Volt Residential Wiring Schematic with G.F.C.I.10240 Volt Residential Wiring Schematic with G.F.C.I.12Ground in System Enclosure. 7Heater Element Specifications Are Shown on the Heater Tube Label.

6ML260, ML240, ML200.28ML400.28ML550.24ML551.24ML554.24ML700 Top Side Panel. 2Recommended Parts For Service Calls. 5Service Tools Required.

5“Molex” Type, ML/GL Connector. 6On Every System, an Identification Label Is Placed on top of the Casing. 6On Every System, a Wiring Diagram Is Placed Inside the Door. 6Panel Construction. 2“Phone Plug” RJ Type, VL/GS Connector. 6“Phone Plug” RJ Type, VL/VS Connector.32Terminal Block 1 & F5 Fuse on a VS500Z Board.19VS500 Board.42VS501 with a Cut-a-way View of the Heater.