Schaerer Ambiente 2 Service Manual

Chapter 4 Fault diagnosis
118 SMSO-2-02.04- 15.07.03
Steam generator does not heat up
System / component Possible cause Remedy
Feed valve  defective  replace (see spare parts catalogue)
Steam generator  Heating defective or heavily calcified  replace (see “Maintenance, steam
generator”)
Electrical faults
Power PCB
 Faulty power PCB, power relay, cabling
or plug
 carry out checks (see control system
diagram, power PCB” and “heating for
instant heater, tea”)
Unit control system  defective  replace (see “Maintenance, unit control
system”)
 Load machine data (counter and set-
tings) to new unit control system
Safety thermostat(s)  Safety thermostat(s) triggered as a re-
sult of over-temperature in the instant
heater
 Clarify the reason for the over-heating;
reset the safety thermostat, or replace if
there are visible traces of the effects of
heat.
Level probe  faulty, calcified or faulty cabling  carry out checks, and if necessary re-
place (see “control system diagram,
level probe” and “functional descriptions,
level probe”)
Programming
 Steam generator heating is blocked  Correct the programming (see pro-
gramming instructions)
 Temperature incorrectly programmed  Correct the programming (see pro-
gramming instructions and “Technical
Data, standard settings”)
Over-pressure in the steam generator
System / component Possible cause Remedy
Electrical faults
Power PCB / power relay
 Power PCB, power relay defective (con-
tacts bonded, and thus no longer switch
off)
 check and replace the power PCB or
power relay (see control system dia-
gram, steam generator”)
Temperature sensor  Temperature sensor defective or calci-
fied
 clean or replace and carry out checks
(see “control system diagram, tempera-
ture sensor, steam”)
Unit control system  defective  replace (see “Maintenance, unit control
system”)
 Load machine data (counter and set-
tings) to new unit control system
Programming
Instant heater
 Temperature incorrectly programmed  Correct the programming (see pro-
gramming instructions and “Technical
Data, standard settings”)

Schaerer Ambiente 2 Specifications

General

Brand	Schaerer
Model	Ambiente 2
Category	Coffee Maker
Language	English