Chapter 6 Control system diagram
204 SMSO-2-02.06- 15.07.03
6.5.20 Booster 02.04.2002 .........
Serial no. 505124 .........
36V
5V DC
36V S
L1, N
Operating condition
The aluminum body is heated by the heat cartridge with proper power supply.
Symptoms
The booster is not being heated.
Programming
The correct pre-heating system must be set.
It is set in the following menu:
General parameters,
Pre-warming system: "BOOSTER"
(The variants of "cycle valve" and "flush" must be locked.)
Procedure
Process
step
Check Possible cause Rectification
1
Power measurement on connec-
tor X381 of the power print:
36 V DC ?
Check power supply (See "Power
print, power voltage")
Power supply failed / defective
General: Plug contacts / check cable and replace if necessary
2
Power measurement X38 2, GND
0 V DC ?
Power transistor does not switch
on
Replace power print
3
Power measurement on connect-
for X8 2 of the EHS:
5 V DC ?
Power supply failed / defective Check power supply (See "Power
print, power voltage")
Over-temperature safety /
Check heating
Over-temperature safety is acti-
vated.
Heating cartridge or temperature
sensor is defective.
Clarify cause of overheating; only
then replace booster completely
Replace booster completely (see
chapter 5)
NO
YES
YES
YES
NO
NO
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