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- Heater replacement for Master Spa Legend Series LSX 1050 FST
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If you've pinpointed your spa's issue to the circuit board, replacing your board can bring back many essential functions and safety features, such as your lights, heat sensors, high-limit sensors, and jet pumps.
At Master Spa Parts, we're proud to carry a diverse selection of circuit boards, including this Master Spas® circuit board, sold under the product name of "Master Spas® Circuit Board MAS400 PC Board (V/N 52185)" in our online store.
If you have the know-how, restoring your spa's jet pumps, lights, high-limit sensors, blowers, and other essential features with a new circuit board can be a piece of cake. When you purchase your Master Spas® MS 5100S Circuit Board V/N: 56122 from Master Spa Parts, you can expect a quality replacement board and terrific savings.
When it comes time to replace your circuit board and return function to your spa's lighting, jet pumps, and high-limit sensors, we've got you covered. Master Spa Parts has numerous legacy Whirlpool® replacement circuit boards in stock, including this MAS520 PC Board (V/N 54357).
Are you ready for the good news? This legacy Whirlpool® circuit board replacement for MAS520 ships fast and with free shipping to all addresses in the Continental United States.








