Canadian Spa UK
Balboa GS501Sz Power Pack (54515)
Balboa GS501Sz Power Pack (54515)
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Balboa GS501SZ Spa Control Box 3.0kw
This GS501SZ Balboa control box allows you to control a spa that either has a two pump or one pump and air blower system. This can be used as a replacement for an existing GS501SZ control box or used as part of a retro fit system when combined with a Serial Standard Balboa topside control panel.
This control box comprises of circuit board, 3kw heater with the latest M7 sensor Technology.
* Note: This control box is only compatible with Balboa Serial Standard Topside Control Panels *
This Control Box Operates
- Pump 1 - One Speed or Two Speed (One Speed in Circ Pump Used)
- Pump 2 - One Speed or Air Blower
- Circ Pump - 24hr Operation (Used as low speed on Pump 1)
- Air Blower - ON/OFF (If no Pump2)
- Ozone - Yes
- Heater - 3Kw M7
- Light - 12 Volt
- TV / Radio - 230 Volt Point Available
- Flow Detection - Latest M7 Sensors
Electrical Connections
Components such as pumps are plugged directly onto the PCB with AMP connectors.
Plumbing Connections
2 Inch socket unions at each end of the heater assembly to be glued onto 2 inch pipe (60mm diameter). When replacing existing control box simply remove socket unions and thread onto the existing pipework on your spa.
Compatible Canadian Spa Topside Controls
Balboa VL701s 7 button Topside - p/n: 54112-02
The VL701S keypad is compatible with the Balboa GS501SZ, GS510SZ, GS511SZ and GS520SZ control systems. This is a very common keypad, with seven buttons in its standard configuration:
- Blower
- Mode
- Jets 1
- Jets 2
- Light
- Warm
- Cool



Buying and support guide
We supply the Balboa GS501Sz Power Pack (54515) with clear specs and UK support. Before you order, check it suits your spa model, size, connector type, power supply and access. This helps you avoid delays and returns.
Replacing a part? Match it to your spa's model and year where you can. For pumps, control packs, heaters, jets, covers, filters, topsides and plumbing, check the part number and connection type. Compare delivery time, warranty and support as well as price.
Running costs matter as much as the price you pay. Energy use, insulation, cover condition, filters and water care all affect long-term value. Replacing worn parts early and keeping the water moving and filtered can save on repairs.
Looking for a whole new tub rather than a part? Compare hot tubs, swim spas and saunas by seating, hydrotherapy, who will use it and the space you have.
Helpful links
- Hot tub parts and replacements
- Filters and water care
- Spa chemicals
- Spa accessories
- Replacement hot tub covers
- Hot tubs for sale
- Swim spas
- Home saunas
- Hot tub servicing and repairs
Quick questions
How do I check this part fits my spa?
Check the model name, model year, part number and connector style. If you're not sure, contact our support team before you buy.
Can you help with fitting?
Yes. For many products we can guide you through replacement and servicing, and tell you when a qualified technician is the better option.
Will this improve performance?
The right replacement part can improve reliability, water flow, heating and everyday performance.