NO ­ replace pump
YES ­ inform customer to des­ cale coffee machine periodi­ cally and to use specified des­ caling product only.
YES ­ for more information please contact Nespresso Service Division
(see page 41)

T R O U B L E S H O O T I N G

Check

Error symptoms

Measure /

Further measures / repair

repair work

work

YES ­ a) water system is empty YES ­ replace self priming

 

device (APD)

 

NO ­ continue

YES ­ b) flow meter blocked

YES ­ clean or replace

 

NO ­ continue

5 Measure coffee temperature dur­ ing preparation (see page 136)

6 Check for leakage (see page 133) and measure flow rate (see page 132)

7 Descale coffee machine

(if necessary)

8 Check water tank contents after des­ caling and rinising

9 Final cleaning (see page 38)

5.1 No coffee

5.2Temperature is too low (below 83°C)

5.3Temperature too high (over 89 °C)

6.1Compact brewing unit leaks

6.2Hose connections leak

6.3Rate of flow not in the standard range

7.1Coffee machine is calcified

8.1Particles of calcium and rust visible in water

YES ­ c) pyramide plate

YES ­ replace the compact

blocked

brewing unit

 

NO ­ continue

YES ­ d) coffee machine is cal­ YES ­ descale coffee machine

cified(see page 41) NO ­ continue

YES ­ descale coffee machine (see page 41)

NO ­ continue

YES ­ replace NTC tempera­ ture sensor

NO ­ continue

YES ­ replace compact brew­ ing unit

NO ­ continue

YES ­ replace defective hoses and seals

NO ­ continue

YES ­ coffee machine is calci­ YES ­ descale coffee machine fied

NO ­ continue with point 9 YES ­ descale coffee machine

(see page 41)

NO ­ continue with point 9 YES ­ descale and rinse coffee machine again to clean water circuit (see page 41)

NO ­ continue

No errors found according to check list?

End of check list

50Citiz service manual

Page 50
Image 50
Nespresso EF487/488, EF485/486, EF483/484 manual Check Error symptoms Measure, Work