Caldera Spa Control Panel 77538
The Caldera Spas 77538 control panel is an 8-button LCD topside control panel designed to operate the main hot tub functions, including water temperature, jets, and lighting. Designed for select Caldera hot tub models from 2016 onward, it features a rectangular shape with rounded corners and a 175 cm connection cable.
| Brand | Caldera Spas |
| Manufacturer Part Number | 77538 |
| Type | 8-Button LCD Topside Control Panel |
| Shape | Rectangular with Rounded Corners |
| Length | 234 mm |
| Height | 111 mm |
| Thickness | 23 mm |
| Cutout Dimensions (W x H) | 216 x 93 mm |
| Cable Length | 175 cm |
| Connection | 6-Wire Cable with 8-Pin JST Connector |
This control panel is installed on the edge of the hot tub and provides direct access to essential spa settings. It also features a control lock function to prevent unauthorized use.
Compatibility and What to Check Before Ordering
This control panel is compatible with the following Caldera Spas models:
- Cantabria 2016-C
- Geneva 2016-C
- Kauai 2016-C
- Makena 2016-C
- Martinique 2016-C
- Niagara 2016-C
- Salina 2016-C
- Tahitian 2016-C
Before ordering, check the manufacturer part number 77538, along with your hot tub model and year of manufacture. Also, compare the control panel dimensions, cutout size, and connector with your existing setup.
The panel measures 234 x 111 mm and is 23 mm thick. The required cutout measures 216 x 93 mm. It connects using a 6-wire cable with an 8-pin JST connector.
Installation / Replacement
This control panel is designed to replace a compatible topside control panel on the specified Caldera hot tubs. Before installation, check the dimensions of the existing opening and make sure the connector matches.
The connection cable is 175 cm long. Replacing the panel may require a software update to the main spa control system. This should be checked during installation.
The panel also features a control lock function. To activate it, press and hold the "Temperature" and "Light" buttons simultaneously for 3 seconds.
What's Included
One Caldera Spas 8-button LCD topside control panel, manufacturer part number 77538, with a 175 cm connection cable and 8-pin JST connector.
Frequently Asked Questions
What does the Caldera 77538 control panel do?
This 8-button LCD topside control panel allows you to operate the main functions of your hot tub, including adjusting the water temperature, controlling the jets, and managing the lighting.
Which Caldera hot tubs are compatible with this control panel?
This panel is listed as compatible with the Cantabria, Geneva, Kauai, Makena, Martinique, Niagara, Salina, and Tahitian models in the 2016-C version. Before ordering, check part number 77538 and the specifications of your existing control panel.
What type of connection does this control panel use?
The Caldera 77538 control panel uses a 175 cm long, 6-wire cable with an 8-pin JST connector. Make sure this connector matches your existing setup.
Is a software update required when replacing the panel?
Replacing this panel may require a software update to the main spa control system. This should be checked when installing the new control panel.
How does the control lock function work?
The panel features a control lock function to prevent unauthorized use. To activate the lock, press and hold the "Temperature" and "Light" buttons simultaneously for 3 seconds.
