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Tucson Equinox fault 7A

Incorrect pipework sizing (insufficient flow rate)

Shower pump

What it means

Insufficient flow rate caused by incorrect pipework sizing.

Likely causes

  1. Incorrect pipework sizing
  2. Expansion and contraction of hot and cold-water pipework causing connections to work-loosen
  3. Internal component commissioning causing temporary odour
  4. Shaft seal run-in period causing moisture discharge
  5. Lime scale build-up from extended non-operation

Where to start

  1. Check for correct pipework sizing
  2. Identify pump model number
  3. Check fuse rating matches model specification

The full answer, free

  • 9 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 15), right under the answer
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Safety: Isolate power and water, and prove dead before you open or test the pump.

From the Tucson manual for the Equinox. Check the model on the data plate before you order parts.

Other Tucson Equinox fault codes