| 1 | 174 074 / H28-975 | Front casing panel | | |
| 2 | 174 075 / H28-976 | Sealing panel | | |
| 3 | 174 076 / H28-977 | Top casing panel | | |
| 4 | 174 077 / H28-979 | LH casing side panel | | |
| 5 | 174 078 / H28-981 | RH casing side panel | | |
| 6 | 174 079 / H28-982 | Lower front panel | | |
| 14 | 170 905 / E67-489 | Burner assembly | | |
| 15 | 173 520 / H07-660 | Combustion chamber insulation kit | | |
| 17 | 170 908 / E67-492 | Injector & housing | | |
| 19 | 172 625 / E85-097 | Fan assembly | | |
| 22 | 174 081 / H29-012 | Gas valve assembly | | |
| 25 | 174 087 / H29-018 | Dry fire thermistor | | |
| 26 | 174 088 / H29-019 | Control thermistor | | |
| 27 | 174 089 / H29-020 | Overheat Thermostat | | |
| 28 | 173 528 / H07-664 | Ignition electrode | | |
| 29 | 173 529 / H07-665 | Flame detection electrode | | |
| 34 | 174 090 / H29-029 | Condensate S trap | | |
| 36 | 174 091 / H29-031 | Condensate S trap hose | | |
| 37 | 174 152 / H29-032 | User Control | | |
| 38 | 174 084 / H29-034 | PCB primary control | | |
| 39 | 170 931 / E67-519 | Fuse PCB (3.15A L250V) | | |
| 41 | 173 537 / H07-777 | Main switch c/w harness | | |
| 42 | 174 094 / H29-038 | Spark Generator | | |
| 45 | 174 169 / H29-045 | Gasket kit (servicing) | | |
| 46 | 174 092 / H29-048 | Burner gasket | | |
| 54 | 171 845 / E78-200 | Burner earth pin (ionisation probe) | | |
| 68 | 173 510 / H07-790 | Ignition lead | | |
| 69 | 173 512 / H07-792 | Detection lead | | |
