U service manual
Version 1.2 en
46
F U N C T I O N T E S T S
8
F U N C T I O N T E S T S
8.1
Safety instructions
Some function tests are performed with an energized, partly opened coffee machine.
8.2
Required equipment
8.2.1 Overview
Danger of electrocution!
Mains voltage inside the coffee machine.
Do not touch any live part while performing tests.
Danger of burns!
Hot parts and water under pressure inside the coffee machine.
Do not touch any hot parts while checking for leakages!
Always wear protective goggles.
Symbolic illustration
of function test equip-
ment.
1) Electronic thermometer
2) Timer
3) Measuring cup
4) Test equipment for protective earth con-
tinuity test and protective insulation test
5) Flashlight
T2
T1
RANGE
-200°C - 1370°C
-328°F - 2498°F
1
REL
HOLD
T1
T2
T1←T2
°C/°F
MAX MIN
2
1
3
5
4
MEASURE
LOCK/ST
OP
COMP
LIGHT
0Ω ADJ
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