Operation
Coffee machine status
After switching on, an automatic
-the NTC is connected,
-the NTC is short circuited,
-the thermoblock reaches the standby temperature within 2 minutes.
Operating modes and detected failures are indicated by backlighted coffee buttons as listed in the following table.
Operating status of coffee buttons
Led off
Led on
Led blinking slow
Led blinking fast
Led blinking three times fast
Service Manual EF 473 / EF 474
Operating modes | left | Coffee buttons | LED signals |
| right |
| |
Off |
|
| off |
Heat up (coffee) / |
|
| blinking slow |
Ready |
|
| on |
Heat up (descaling) |
|
| blinking fast |
Small coffee / rinsing / |
|
| Button “small cup“ is blinking slow |
programming |
|
| Button “large cup“ is on |
Large coffee / rinsing / |
|
| Button “small cup“ is on |
programming |
|
| Button “large cup“ is blinking slow |
Descaling ready |
|
| blinking fast |
Pump on/off |
|
| blinking fast |
(while descaling) |
|
| |
|
|
| |
Emptying water system |
|
| blinking fast |
Failure |
|
| blinking three times fast |
|
| blinking slow, left/right alternately | |
Resetting |
|
| blinking slow |
14 |
|
| Version 1.0 en |
