Every guide is one specific spa problem, worked through in the order that actually finds the fault — what to check, what it costs, and exactly where DIY stops and a technician starts.
Guides
In-depth, plain-English guides for the most common hot tub and inflatable-spa problems.
Flashing vs. steady FLO, the filter-out test, and the eight checks between a dirty filter and a dead switch.
Electrical safetyWhy it trips, why you never bypass it, and the isolation order that names the guilty component.
InflatableBestway's own split test separates a $0 filter fix from a failed pump or sensors.
HeatingStart with the mode button, not the heater — the sequence from free causes to the element verdict.
RefillsWhy fresh fills cause flow codes, the bleed that fixes it, and the fill method that prevents it.
GeckoGecko's pressure-switch logic, the FLC mirror fault, and when FLO means the pump instead.
PumpsA hum is a motor with power that can't turn. Three causes, three very different invoices.
The guide got you partway. The troubleshooter finishes it: a few questions and you get an honest read on what's wrong — whether it's a free fix, a DIY part, or a job for a technician. If it needs the full playbook, the $39 Spa Troubleshooter Kit has the complete code decoder for Balboa, Gecko, and Bestway, plus every walkthrough with its stopping points.