Fresenius Medical Care 4008 S Service Manual

Chapter 7: Error messages
Fresenius Medical Care 4008 S (Version V10) SM-EN 7/01.13 7-19
7.2.2 PSW (pressure switch) monitoring during free rinsing
(only with devices with CDS)
Error message Description
Rinse Failure F05 Rinse-free program with following Dis or HDIS or mandatory rinse as individual
program in Dis I – V.
It was impossible to open the pressure switch for PSW_104 (S124)
(bicarbonate).
– Pressure on distribution piping > 500 mbar (according to specification, the
permissible pressure is max. 500 mbar). Pressure peaks on distribution
piping: Frequently occurs in distribution pipings with user points if e.g.,
several patients are disconnected simultaneously and disinfection is started.
– Switching point of pressure switch too low:
Desired= 700 mbar ±20 mbar
– Check acknowledgement of pressure switch on P.C.B. LP 633-5:
Concentrate: X633L/A20
Rinse Failure F06 Rinse-free program with following Dis or HDIS or mandatory rinse as individual
program in Dis I – V.
It was impossible to open the pressure switch for PSW_102 (S123)
(concentrate).
– Pressure on distribution piping > 500 mbar (according to specification, the
permissible pressure is max. 500 mbar). Pressure peaks on distribution
piping: Frequently occurs in distribution pipings with user points if e.g.,
several patients are disconnected simultaneously and disinfection is started.
– Switching point of pressure switch too low:
Desired= 700 mbar ±20 mbar
– Check acknowledgement of pressure switch on P.C.B. LP 633-5:
Concentrate: X633L/A20
Rinse Failure F07 Rinse-free program, Dis, HDIS, or mandatory rinse in Dis I to V.
Pressure drop during the monitoring phase on PSW_104 (S124) (bicarbonate)
or pressure build-up impossible.
– Check switching point of pressure switch
– Check loading pressure
(possibly splinter or contamination in orifice 151, remove and purge the
tubing from both ends)
– Check negative pressure and orifice (89)
(for this purpose, remove and purge the tubing from both ends)
– Check CDS valve (104)
– Check tightness of CDS path
– Check acknowledgement of pressure switch on P.C.B. LP 633-5:
Bicarbonate: X633L/A19
– Cartridge filter (F210) upstream of degassing pump clogged or wrong filter
(filter for disinfectant container) installed. Filters can be distinguished by
different adapters.

Fresenius Medical Care 4008 S Specifications

General

Brand	Fresenius Medical Care
Model	4008 S
Category	Medical Equipment
Language	English