Sundance Spa Heater Replacement Guide

How to Replace a Sundance Spa Heater

Follow this step-by-step guide to replace the heater in your Sundance spa. If you're unsure about any step, consult a professional.

Tools and Materials Needed

• Replacement heater (compatible with your Sundance spa model)
• Screwdrivers (Phillips and flathead)
• Adjustable wrench or pliers
• Teflon tape (for sealing threaded connections)
• Silicone lubricant (for O-rings)
• Bucket or towels (to catch water)
• Multimeter (to test electrical connections)
• PVC pipe cutter (if plumbing needs to be cut)
• Safety gloves and goggles

Step-by-Step Instructions

Step 1: Turn Off Power

• Locate the circuit breaker that powers your spa.
• Turn off the breaker to ensure no electricity is flowing to the spa.
• Verify the power is off by attempting to turn on the spa controls.

Step 2: Drain the Spa (if necessary)

• If the heater is below the waterline, drain the spa to prevent leaks.
• Use a submersible pump or the spa’s drain valve to empty the water.
• Place a bucket or towels near the heater to catch residual water.

Step 3: Access the Heater

• Remove the spa cabinet panels to access the internal components.
• Locate the heater assembly (a cylindrical metal tube near the pump and filter).

Step 4: Disconnect the Electrical Connections

• Take a photo of the wiring connections for reference.
• Carefully disconnect the wires from the heater terminals.
• Use a multimeter to confirm there is no power running to the heater.

Step 5: Disconnect the Plumbing

• Take a photo of the plumbing connections for reference.
• Use an adjustable wrench or pliers to loosen the unions or couplings.
• If pipes are glued, use a PVC pipe cutter to carefully cut them.

Step 6: Remove the Old Heater

• Unscrew or unbolt the heater from its mounting bracket.
• Carefully remove the old heater and inspect the area for damage.

Step 7: Install the New Heater

• Position the new heater and secure it to the mounting bracket.
• Reconnect the plumbing using Teflon tape for threaded connections.
• Reconnect the electrical wires according to your reference photo.

Step 8: Test for Leaks

• Refill the spa with water (if drained).
• Turn on the power and check for leaks around the heater connections.

Step 9: Restore Power and Test

• Turn the power back on at the circuit breaker.
• Run the spa and verify the heater is working properly.

Step 10: Reassemble the Spa

• Reattach the spa cabinet panels.
• Secure the panels with screws or clips.

Safety Notes

• Always turn off the power before working on the spa.
• If you’re unsure about any step, consult a professional technician.
• Wear safety gloves and goggles to protect yourself during the process.

Click Here To See Sundance Spas Heaters