Nespresso Gran Maestria EF 287, Руководство по обслуживанию

Страница: 39 / 162

Maestria / Gran Maestria service manual
39
T R O U B L E S H O O T I N G
6 Test coffee prepa-
ration (continued)
6.6 Coffee temperature
too high (over
89 °C)?
YES
- check for calcification
- check temperature sensor
- check electronics
NO - continue Descale coffee machine (see
user manual).
Replace damaged parts.
6.7 Fill capacity not
correct?
YES
- check water circuit (leakages)
- check flow meter
- check push/turn control
modules
- check electronics
NO - continue
Clean or replace flow meter.
Replace damaged parts.
6.8 Coffee capsule not
ejected?
YES - check brewing unit
NO - continue
7 Test milk frother
7.1 Milk frother not rec-
ognized by coffee
machine?
YES
- check milk frother
- check wiring of milk frother
connector
- check electronics
NO - continue
7.2 Milk frother does
not work?
YES
- check milk frother
- check push/turn control for
milk frother operation
- check milk frother connector
- check electronics
NO - continue
7.3 No or not enough
milk foam
YES
- check spring whisk
- check milk frother
NO - continue
Clean or replace spring whisk
7.4 Temperature of milk
foam out of range?
YES - check milk frother
NO - continue
7.5 Milk frother does
not switch off?
YES - check milk frother
NO - continue
8 Test automatic
shut off (see “Spe-
cial settings” on
page 28)
8.1 Middle LED does
not light up
orange?
YES
- check push/turn control
modules
- check wiring
- check electronics
NO - continue Replace damaged parts
8.2 Coffee machine
does not switch
off?
YES
- check push/turn control
modules
- check electronics
Continue
9 Descale coffee
machine
(if necessary)
9.1 Coffee machine
calcified?
YES - Descale coffee machine
(see user manual)
NO - continue Inform customer to descale
coffee machine according to
user manual and to use the
specified descaling product.
10 Empty coffee
machine (evapo-
rate residual
water)
10.1 Coffee machine
cannot be emp-
tied?
YES
- check push/turn control
modules
- check electronics
NO - continue
11 Final cleaning Clean coffee machine
12 Perform safety
inspection (see
“Function tests”
on page 116
12.1 Safety inspection
not passed?
YES - check wiring / assembly
NO - continue Repeat safety inspection after
resolving problem(s).
12.2 No errors found
according to check
list?
YES - For further investigation
please contact the
Nespresso
Service Division
End of check list
Check Error symptoms
Measure /
repair work
Further measures /
repair work