Welcome to Backyardplus! In this post, we are going to show you how to do a heater replacement in a Hot Spot and Solana spa. Before we get started, let’s go over the tools you will need.
Tools you will need for a heater replacement in a Hot Spot and Solana spa:
- Phillips head screwdriver
- Flat head screwdriver
- Channel locking pliers
- 3/8” wrench
- Silicone grease
Step 1. Disconnect power from the spa.
Step 2. Drain the spa.
Step 3. Remove the equipment door and control box lid.
Step 4. Disconnect the two black hot wires (J18 & J19) and the heater ground wire from the circuit board.
Step 5. Disconnect the High Limit thermistor (J6) and the pressure switch (J5) from the circuit board.
Step 6. Loosen the compression fittings, disconnect the bonding wire, and remove the heater.
Step 7. Install the ground wire and the two black hot wires on the new heater.
Step 8. Install the High Limit thermistor on the new heater.
Step 9. Remove the plug in the heater, wrap the threads of the new pressure switch with plumbers’ tape, and thread the new Pressure Switch into the new heater.
Step 10. Remove the old compression O-rings, cover the new O-rings with silicone grease, and install them into the pump unions.
Step 11. Install the heater and connect the bonding wire. Tighten the compression fittings.
Step 12. Connect the two black hot wires to the Heater J18 Black and J19 White on the circuit board and tighten the nuts with a 3/8” wrench.
Step 13. Connect the green ground wire to HEATER GREEN on the circuit board. Make sure all the connections are tight.
Step 14. Plug the high-limit thermistor into the J6 LIMIT port on the circuit board.
Step 15. Plug the pressure switch into the J5 PRESSURE SW port on the circuit board.
Watch the video here “Heater Replacement in a Hot Spot and Solana Spa!”
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