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To Know How - GROHE

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Contromix Surf<br />

Problem Cause Remedy Figure<br />

Fitting not • Flow rate too low<br />

• Check<br />

closing • Cartridge defective • Replace cartridge and if necessary O-ring • 1 - 4<br />

• O-ring damaged • Replace • 3<br />

Fitting not<br />

opening<br />

Flowtime too<br />

short or too<br />

long<br />

Flow volume<br />

too small<br />

• Service valve closed • Open service valve • 1 - 4<br />

• Cartridge defective<br />

• Replace cartridge and if necessary O-ring<br />

• Setting incorrect • Set running time • 5<br />

• Cartridge defective • Replace cartridge and if necessary O-ring • 1 - 4<br />

• Dirt strainers blocked<br />

• Clean<br />

• Service valves not fully open • Open service valve • 8 - 9<br />

• Limescale on mousseur<br />

• Clean<br />

Hot water<br />

entering cold<br />

water pipe<br />

through pressure<br />

• Non-return valve dirty or defective • Clean or replace • 8 - 9<br />

Special Fittings<br />

S 15

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