Master Spas repair in Palm Beach County

The single most common Master Spas service call we see starts with an OHH (overheat) code — and on these tubs, OHH is very often not a dramatic electrical failure at all. It's calcium scale building up inside the heater tube. South Florida water is hard, scale loves to deposit on the hot element, and as it coats the inside of the heater it both restricts flow and traps heat against the sensor. The control sees that trapped heat, assumes the water is overheating, and shuts down with OHH — even though the actual problem is a furred-up heater, not a runaway one.

That distinction matters for your wallet. An owner who reads “overheat” braces for a board or sensor replacement, when the real fix is often de-scaling or replacing the heater tube and restoring flow. Per the overheat diagnostic chain, we check flow and the heater path — scale, weak pump, stuck relay, bad sensor — before condemning expensive electronics.

Otherwise, Master Spas uses fairly conventional flow-through heaters and Balboa-style controls, so the rest of the failures are familiar: a grounded element tripping the GFCI, a flow switch reacting to a clogged filter, or a jet pump that hums but won't spin on a dead capacitor. Those use largely universal parts, which keeps most Master Spas repairs same-day.