Grundfos STP 2 fault 5

Pompada darbe görülüyor (positive displacement pumps)

Shower pump

What it means

Pump exhibits pulsing/surging on positive pressure pumps.

Likely causes

  1. Evdeki diğer muslukların kullanımı pompanın anlık çalışmaya başlamasına neden olabilir (Use of other taps in the house causing pump to momentarily start)
  2. Leak causing loss of tank air pressure

Where to start

  1. Musluk ve diğer tahliye noktalarının su darbesine neden olmadığından emin olun
  2. Turn on water supply and fill system
  3. Check for leaks before starting

The full answer, free

  • 25 more checks in order
  • The readings and component tests from the manual
  • How to put it right, step by step
  • The manual page for this fault (page 28), right under the answer

Safety: Isolate power and water, and prove dead before you open or test the pump.

From the Grundfos manual for the STP 2. Check the model on the data plate before you order parts.

Other Grundfos STP 2 fault codes