Fault Finding |
|
| Brown | Blue | Green | |
|
|
| ||||
Preliminary Electrical Systems Check |
| Yellow | ||||
|
| |||||
START |
|
|
| Blue |
| |
Isolate appliance |
|
|
| |||
and carry out: |
|
| Brown | Green | ||
A: Earth Continuity |
|
|
| Yellow | ||
check. |
|
|
|
|
|
|
NO | YES | Carry out: |
| Carry out: |
|
|
| D: Resistance to |
| ||||
|
| C: Polarity check. |
|
| ||
|
|
| Earth check. |
|
| |
|
|
|
|
|
| |
Has inlet fuse blown? |
|
| Electricity supply |
| ||
NO |
| YES |
| should now be |
|
|
|
| satisfactory. |
|
| ||
|
| PLUG (with cover removed) | SOCKET |
| ||
Inlet wiring |
| Earth Wire |
|
| (face view) | |
faulty. |
|
|
|
|
| |
| Green/Yellow | ( | ) |
|
| |
Rectify any |
| E ( | ) | |||
|
| |||||
fault. |
|
|
|
| ||
|
|
|
|
|
| |
|
| Neutral Wire |
| FUSE |
|
|
|
| Blue |
|
|
| |
|
|
|
|
|
| |
|
|
|
| N |
| L |
| Isolate appliance and |
|
|
|
| |
| carry out: |
|
|
|
|
|
| B: Insulation check. |
|
|
|
| |
| Rectify any fault |
|
|
|
| |
| including replacing |
|
|
|
| |
| fuses as necessary. |
|
|
|
| |
22 |
|
|
|
|
|
|