Showers & tubs

Tub jets not working (jetted/whirlpool tub)

Jets that won't turn on are most often an electrical or control issue, while weak jets usually mean an air intake or pump clog, both of which are diagnosable without opening the pump housing yourself.

Difficulty
Moderate
Time
30–60 minutes
DIY cost
$10–$25
Pro cost
$150–$400

Symptoms

  • Pressing the jet button does nothing
  • Jets run but with very weak pressure
  • Motor makes noise but no water moves
  • Jets worked before but stopped suddenly

Likely causes

  • CommonTripped GFCI outlet or breaker for the tub circuitWhirlpool tub motors are on dedicated GFCI-protected circuits that trip easily from moisture or age.
  • CommonClogged air intake or jet nozzlesSoap scum and mineral buildup can restrict the air intake valve or individual jet openings, weakening flow.
  • PossibleFailed pump motorMotors can burn out or seize after years of use, especially if not cleaned regularly.
  • Less commonFaulty control switch or timerThe air switch or electronic control that activates the pump can fail independently of the motor itself.

What to do

  1. Check the GFCI outlet (often under a nearby cabinet or on the wall) and the breaker panel, resetting any tripped switches.
  2. If jets run but weakly, locate the air intake valve near the tub rim and clean around it with a small brush.
  3. Run a jetted tub cleaning cycle using a dishwasher-safe detergent and hot water per your tub's manual to flush the internal lines.
  4. Inspect individual jet nozzles for buildup and unscrew/clean if your model allows it.
  5. Listen for the motor when pressing the button; a humming sound with no water movement suggests a pump or impeller issue.
  6. If the motor doesn't make any sound at all, the air switch or wiring may need testing, which is best left to a professional.
  7. Avoid opening the pump housing yourself unless you're comfortable with basic electrical work, since it involves both water and wiring.

Tools and parts

  • Small brush
  • Jetted tub cleaner
Whirlpool tub jet cleanerSearch: “jetted tub system cleaner”

When to call a pro

Call an appliance or plumbing technician if resetting the GFCI and cleaning don't restore function, since motor or wiring repairs need electrical expertise.

Safety

Use caution

Never open the pump or motor housing while the tub could be wet or plugged in; always confirm the breaker is off first.

Related guides

Operator provides AI-generated troubleshooting information. It can be wrong. For safety-critical, electrical, gas, structural, medical, automotive safety, or other high-risk problems, consult a qualified professional.