P Safety Sensor, Loose Contact Or Defective - Buderus 24C Servicing Manual

3 Troubleshooting
4
Flashing
Safety sensor, loose contact
or defect
"reset"
New fault warning
message 4P?
Remove the casing (page 48)
Check wiring to safety sensor for loose
contacts (page 55)
Wiring OK?
Check safety sensor (page 55)
Safety sensor
page 46
Fig. 17 Fault warning message 4P: Safety sensor, loose contact or defect
Subject to modifications resulting from technical improvements!
20 Servicing manual for wall-mounted condensing gas boiler 600 Series 11S/19S/24S/24C • Issued 02/2006
P
No
Yes
No
Yes
No
OK?
Yes
A
Replace cable (page 55)
Replace safety sensor (page 55)
Buderus Ltd. • http://www.buderus-domestic.co.uk
"reset"
Fit the casing
(page 48)
600 Series
11S / 19S / 24S / 24C
OK