Fault Finding
12
Turbofan E20D Series Convection Ovens © Copyright Moffat Ltd. 10 February 2016.
Amendment 1
ELEMENT RESISTANCE AND CURRENT
Model Watts Voltage Resistance ± 5% @20
o
C (68
o
F) Current ± 5%
E23D3 2800W 230 - 240V
20.5 Ω
11.7A @ 240V
2800W 200 - 220V
17.3 Ω
12.7A @ 220V
E27D2 2800W 240V
20.5 Ω
11.7A @ 240V
2800W 220V
17.3 Ω
12.7A @ 220V
E27D3 4500W 230 - 240V
12.8 Ω
18.8A @ 240V
4500W 208 - 220V
10.7 Ω
20.5A @ 220V
E28D4 2800W x 2 230 - 240V
20.5 Ω each 11.7A @ 240V each
2800W x 2 208 - 220V
17.3 Ω each 12.7A @ 220V each
Fault Possible Causes Remedy
Uneven cooking. Too high a temperature selected.
Oven or racks not level.
Insufficient air space around trays or
baking tins.
Oven overloaded with product.
Opening oven door un-necessarily.
Oven door seal damaged or faulty.
Oven vent restricted.
Fan motor not operating in both directions.
Controller faulty.
Capacitor faulty.
Fan Motor faulty.
Select a lower temperature.
Check oven and racks and level.
Ensure oven racks are spaced to allow air flow
around all shelves.
Re-load oven.
Ensure oven door remains closed where
possible.
Check seals and replace if damaged.
Ensure oven vent is not blocked or shrouded.
Check motor output from controller. If no
output, replace controller.
Check and replace capacitor if faulty.
Replace fan motor.
Operational Faults (Cont’d)
Element Resistance and Current Table
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