Bosch Oven and Cooker repairs
Cookers and ovens are one of the most desirable on the market. Even the cheaper range are very good, long
lasting and easy to repair. Most common among ovens are Fan Ovens they only faults they tend to develop are. Faulty elements and occasionally fan motors but
Bosch Fan oven elements are accessible without removing the appliance from the housing. Unless the safety
thermostat has failed which means working from the rear. There are basically three different types of fan element fitted to Bosch Fan ovens. There is what looks like half circle element and moor conventional full circle
element of which there are more than one type. On ovens of all typed element failure is very often due to
build up of fat on element causing hot spots on element ring. Also elements just fade away like light bulbs
after a few years.
Engineers report:- lt67 Attend Bosch HBN700550/01
Fault: customer reports that oven not
Unplug and Perform earth leakage/low insulation test. Test Earth
Leakage Suspect Element,
Remove cooker from housing and remove back panel. Isolate each element in turn Megger test each in turn .
Fault found main oven element (no circuit and earth
Action taken:- Fit new Fan oven element. Megger test again OK. Re-fit back plate. Re-fit oven into
housing. Re-set clock. Perform standard test procedure again. OK
Spares used:- Element Part No ELE2052
Engineers report:- lt442 Attend Bosch HBN43055OB/02
Fault: customer reports oven poor
Unplug and Perform earth leakage/low insulation test. Test OK. Set fan oven to low temperature and observe if fan is starting up and if appliance
heating. No Fan action. Remove cooker from housing and remove back
panel. Set oven to low temperature again and live 240 testers ascertain if power getting to
Fault found faulty motor Continuity test motor , open circuit.
Action taken:- Fit new motor. Re-fit back. Re-fit oven into housing. Perform full test
procedure again test OK.
Spares used:- Fan motor Part no 490541
Please note we except no
liability for the information given above and we only recommend that repairs are carried out by a fully
qualified engineer from MDA Spares.