Repairing Ovens and
Most electric ovens nowadays are Fan ovens
and seem to be
popular because they are inexpensive to buy, easy and cheap to repair, simple to use, energy efficient and
most of all, they are easy to control.
come in a variety of forms: As a single slot in oven, as parts of a double slot in an oven and a free standing
oven or range oven.
Fan Ovens usually have a circular element, with
two or three rings or turns with a fan in the centre of the circle of the element. The spinning fan blades push
air directly over the element and out into the oven dispersing the heat evenly around the oven in a continuous
air flow through and over the element, making a fast and efficient use of the heat and keeping the whole oven
cavity at an even temperature that makes for easy and precise thermostatic
Most single fan ovens are not hardwired and
are easily removed. Most are on a 13amp plug,
which means they are below 3120watts in total - not much more than a electrical kettle (hence their efficiency).
Twin cavity fan ovens and slot in cookers are
usually wired directly to a 45amp double poll isolator.
The most common fault on a fan oven is the failure of the fan
element. Spare elements for most fan ovens are readily available
and easy to replace in most ovens and cookers. Here are the parts that we are most asked for in a typical slot
in Fan Oven.
element. Grill element. Fan motor.
are others that fail - like the thermostat, timer, heat control etc. However the element is far and away the most
common part that is ordered.
Below is the list of spare parts used by one Cooker or \oven engineer in
one week in order of quantity.
Part # 6224745 Hotpoint fan element (original
Part # ele 9028 belling fan element (4)
Part # ele c0084399 Indesit fan element (4)
Part # ele4001 tricity bendix fan oven element. (3)
# ELE6336 ELEMENT FAN OVEN ZANUSSI 2500W (2)
ele3340 oven bulb 15w lamp (11)
Part # cs24 HOTPLATE SOLID 2000W RED 180MM 8MM
cs23 HOTPLATE 1.5KW 145MM RAPID RED (2)
Part # c00145486 Thermostat Hotpoint
Part # CS02 RADIANT RING 7 INCH 1800W (1)
CS01 RADIANT RING 6 INCH 1100W (1)
cooker and oven engineers like to work on single fan ovens because they are easy to diagnose and
Below is the most common oven repair performed by an oven
engineer would first of all, ask the customer what fault they were experiencing. The engineer would disconnect
the appliance from the power supply and the engineers would as a matter or course Perform earth leakage/low
the customer reported that oven was not heating he would then
select the oven setting adjust variable thermostat to low temperature and observe if the fan is running and any
heat is generated. If no heat is detected and the fan is operating, Diagnose pos element
failure, depending on the make and model of
engineer would follow the element removal procedure and test element to confirm failure, then begin new element
fitting procedure set our for that make and model. After fitting he would safety test, and re-fit the
Fan assisted ovens are not the same as fan
ovens. Fan assisted ovens usually have a base element or side elements and a fan that circulates the heat around
the oven. Fan assisted ovens are not as efficient as Fan ovens and are usually not as energy
most common failure on this type of appliance is again the element.
engineer would perform the same test as with fan oven, fan assisted ovens usually have top and bottom
engineer would circuit test both elements to ascertain which had failed and then would replace the failed
element with a new element according to its particular manufacturers fitting
older types of electric cookers and ovens do not have a fan - they are convection ovens and rely on the elements
heating the oven cavity by convection, which usually means that the bottom part of the oven is not quite as hot
as the top part.
Convection ovens usually have the elements left
and right of the oven cavity and very often, the spare elements can be difficult to acquire. However we stock the majority of these on cookers up to 25
years old. The test and fitting procedure is the same as Fan assisted ovens.
tops (even though they are part of the cooker) are usually known as the hob. Some are Glass topped with the
electrical element underneath. These are known as ceramic hobs. There are two other types of oven top (hob)
Solid plate type element sometimes known as hotplates and then there is the spiral element. There are two common
sizes of hotplate element and spiral element. 6 inch 145mm and & 7 inch 180mm.
There is also a duel circuit spiral elements.
cooker engineers find the replacement of Spiral type hob rings the easiest of repairs
using Spare Part # cs01 or Part # cs02
The following is how a cooker engineer would fit a new spiral hob
Isolate appliance from power supply. Perform earth leakage/low insulation
test. Lift hinged hob top and secure in upright position.
Remove metal guard to reveal wiring. Remove wiring to pos failed element. Circuit test
element, if failed , replace with part # cs01 or part # cs021 or part # cs03. Re-fit wiring
guard . Lower hob top back into position. Perform Insulation test to ascertain that no wiring has been trapped
The following is how a cooker engineer would fit a new solid hob
These are the most difficult of
all hob rings to fit (dependent
on make and model). On some makes of cooker the sides and back of the
appliance have to be removed to gain access to hob top. However on other makes that are simpler to work on, the
procedure is as follows.
Isolate appliance from power supply. Perform earth leakage/low insulation test. After
detaching hob from cooker chassis lift hob and turn over to reveal securing points for solid elements. Remove
wiring from suspect hotplate and circuit test. If failed unsecured hotplate by undoing the central nut securing
hotplate to hob top. Replace with new plate spare part # cs23 or part # cs24. Re-connect
wiring and Re-Fit hob top to cooker chassis. Perform Insulation test to
ascertain if any wires trapped between chassis and top. Heat test.
Ceramic Hobs are one of the most expensive to
repair because the halogen type elements can be expensive, depending on make and model.
The following is how a cooker engineer would fit a new ceramic
Element when the hob is part of the
Isolate appliance from power supply. Perform earth leakage/low insulation test. Remove hob top
and glass top in accordance with our instructions set out for each different manufactures models. Turn
hob frame over and remove element from frame and examine be sight looking for and brakes in coils
of element, usually visible, If brake detected replace element. Re-assemble hob top and Re-attach to cooker
body. Insulation test to ascertain if any wires trapped between chassis and top. Heat
replacement of grill elements on the older type of cooker dependent on model can be simple or
The following is how a cooker engineer would fit a new grill element to
the simpler model cooker or oven is as follows.
Isolate appliance from power supply. Perform earth leakage/low insulation test. Turn on grill
test for control operation, visually examine element be sight looking for
distortions in element, usually visible, if obvious remove element and disconnect wires, Circuit test element,
and replace part if failed, reconnecting wiring when fitting. Earth leakage test. Heat
elements on fans are fitted in a similar manner. However some fan ovens grill elements can only be accessed from
the rear which means removing Oven from the housing.
Unlike Hob elements, all manufactures have different grill elements for their cookers and
ovens and mostly different elements for different models of their cookers and
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.