Table Of Contents - Worcester CDi Combi N.G Service Booklet

TABLE OF CONTENTS

TABLE OF CONTENTS
1 Explanation of symbols and safety precautions
1.1 Explanation of symbols . . . . . . . . . . . . . . . 3
1.2 Safety precautions . . . . . . . . . . . . . . . . . . 3
2 layout of boiler . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 CDi Combi boilers . . . . . . . . . . . . . . . . . . . 4
2.2 CDi System boilers . . . . . . . . . . . . . . . . . . 6
2.3 CDi regular boilers . . . . . . . . . . . . . . . . . . 8
2.4 Highflow CDi Combi boiler . . . . . . . . . . . 10
2.5 FS CDi Regular boilers . . . . . . . . . . . . . . 11
3 OPERATION - CDi . . . . . . . . . . . . . . . . . . . . . . . 12
3.1 Initialisation . . . . . . . . . . . . . . . . . . . . . . . 12
3.2 Display messages . . . . . . . . . . . . . . . . . . 12
3.3 Operating elements CDi (Wall hung) . . . 13
3.4 First service level . . . . . . . . . . . . . . . . . . 13
3.5 Second service level . . . . . . . . . . . . . . . . 13
3.6 Resetting service functions to factory
settings . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.7 Select max. or min. heat output . . . . . . . 14
3.8 Reset the appliance . . . . . . . . . . . . . . . . . 14
4 OPERATION - HIGHFLOW CDi and FS CDi
REGULAR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.1 Initialisation . . . . . . . . . . . . . . . . . . . . . . . 15
4.2 Display messages . . . . . . . . . . . . . . . . . . 15
4.3 Operating elements . . . . . . . . . . . . . . . . . 16
4.4 First service level . . . . . . . . . . . . . . . . . . 16
4.5 Second service level . . . . . . . . . . . . . . . . 16
4.6 Resetting service functions to factory
settings . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.7 Select max. or min. heat output . . . . . . . 17
4.8 Reset the appliance . . . . . . . . . . . . . . . . . 17
5 Boiler service functions - CDi Combi & System
boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.1 First service level . . . . . . . . . . . . . . . . . . . 18
5.2 Second service level. . . . . . . . . . . . . . . . . 19
5.3 Explanation of service functions . . . . . . . 19
6 Boiler service functions CDi, Highflow CDi
& FS CDi Regular . . . . . . . . . . . . . . . . . . . . . . . . 23
6.1 First service level . . . . . . . . . . . . . . . . . . . 23
6.2 Second service level. . . . . . . . . . . . . . . . . 24
6.3 Explanation of service functions . . . . . . . 25
7 Rectifying faults . . . . . . . . . . . . . . . . . . . . . . . . 27
7.1 Indication of faults . . . . . . . . . . . . . . . . . 27
7.2 Summary . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.3 Notes on using the fault code tables . . . . 28
7.4 Error codes on the display . . . . . . . . . . . 29
7.5 Faults that are not displayed . . . . . . . . . 52
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3 8 Troubleshooting - FW 100 . . . . . . . . . . . . . . . . . 58
8.1 Troubleshooting using the display . . . . . . 58
8.2 Troubleshooting without the display . . . . 62
9 Troubleshooting - FR110 . . . . . . . . . . . . . . . . . . 63
9.1 Troubleshooting using the display . . . . . . 63
9.2 Troubleshooting without the display . . . . 67
10 Troubleshooting - RT10 . . . . . . . . . . . . . . . . . . . 68
11 Troubleshooting - TD 200 . . . . . . . . . . . . . . . . . 69
12 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
12.1 NTC sensor values, CDi appliances . . . . . 71
12.2 CDi fan speeds . . . . . . . . . . . . . . . . . . . . 71
12.3 Highflow CDi &
FS CDi Regular fan speeds . . . . . . . . . . . .71
12.4 NTC sensor characteristics Highflow CDi & FS
CDi Regular appliances . . . . . . . . . . . . . . .72
12.5 Electrical wiring diagrams . . . . . . . . . . . . 73
12.6 Code plugs used with CDi appliances . . . 78
12.7 Code plugs used with Highflow CDi & FS CDi
Regular appliances . . . . . . . . . . . . . . . . . .78
12.8 Approved corrosion inhibitors and anti-freeze
for central heating water
12.9 Possible sources of corrosive CFCs . . . . . 79
8 716 115 748 (2009/09)
. . . . . . . . . . . . .79