Tri-City Spa MechanicsHot Tub Repair · Richland, WA 📞 (509) 841-9132
Brains of the machine

Control & Pack Repair

The pack decides everything the spa does. We read it with a meter before replacing it — because half of 'dead pack' calls are a relay, a fuse or a cable.

Balboa & GeckoBoard-level repairTopside panels
HomeServicesControl & Pack Repair

Control & Pack Repair — how we work it

Spa packs fail in patterns. Balboa boards weld heater relays and burn traces at the element terminal; Gecko packs lock out on low voltage and sulk when moisture reaches the connectors; topside panels die at the ribbon cable more often than at the display. Knowing the patterns means the diagnosis is a measurement session, not an exchange program.

Board out, ribbon checked, relays measured — bench habits in the field
Board out, ribbon checked, relays measured — bench habits in the field

Where a relay, fuse or connector is the culprit, the repair happens at board level and your pack survives. Where the board is genuinely cooked, the correct replacement pack goes in configured for your pump layout and heater on the spot, so the first power-up behaves like the tub you remember.

What the symptom usually means

Panel dark, tub alive

Pumps cycle on schedule but the display is dead — ribbon cable or panel, and the cable is cheaper. Tested from the pack side first.

Setpoint ignored

Water sails past the number — a heater relay stuck closed. Repairable on most boards, urgent on all of them.

Sn error on screen

An open sensor circuit. The probe or the input it plugs into; we test both before buying either.

Reboots on its own

The low-voltage supply on the board sagging. A failing transformer more often than a failing brain.

The procedure

  • Error code photographed before any reset
  • Relays, fuses and sensor inputs measured individually
  • Board-level repair where it genuinely pays
  • Replacement packs configured on site for your equipment
  • Settings and setpoint restored before hand-back

Straight questions

Is board repair reliable, or should packs just be replaced?
A welded relay or blown fuse repaired properly is as reliable as the rest of the board. A burnt heater trace is not worth chasing — that board is done, and we say so.
The display is scrambled after a power cut — bad sign?
Often just a confused processor. Breaker off for a minute, back on. If the scramble returns, then it is our kind of problem.

Covered towns

From the work orders

Job Cards, Lightly Redacted

Real faults, real fixes — the paperwork version, minus the addresses.

WO-1521

Display dead, spa running fine

Ribbon cable green with corrosion at the pack plug. Cleaned, sealed, panel lived.

WO-1489

Heater relay stuck closed

Water at 106° and climbing. Board-level relay swap on a BP501 — pack saved.

On the clock

Field Bench, Open

Probes on the topside connector before a single part is named
Probes on the topside connector before a single part is named
First look at a cedar-skirt tub — the walk-around comes before the wrench
First look at a cedar-skirt tub — the walk-around comes before the wrench
Evan with the bay open — meter on the pack, gaskets and board laid out in order
Evan with the bay open — meter on the pack, gaskets and board laid out in order

Sounds like your tub?

Describe the symptom and the brand — the diagnosis starts on the phone and finishes with one written number.