Merrychef eikon e4s - Manual (Page 30)

30 Service & Parts Manual original Instructions
Part Number 32Z3871 US
Issue 3
TESTING
C
OMPONENT
S
A
C
B
15.4 OVEN TESTS
15.4.1 Enter Service mode (Servicing section).
15.4.2 Select the down arrow to display the individual
Oven tests (A) for the oven to perform.
15.5 Microwave Power Test
Measuring the power output.
Note: The power output is established under IEC
705 standard method which is only workable in
Laboratory controlled conditions. Power output is also
aff ected by line voltage under load, so this test is an
approximation only.
15.5.1 Ensure the oven is cold, then enter Service
mode to bypass oven preheating.
15.5.2 Select Visual View (B) to check the oven cavity
temperature reading is as close to 0°C as possible.
1 Fill a microwave safe container (glass or plastic)
with one litre (1.78 pints) of tap water at about
20°C (68°F).
2 Measure and record the water temperature in
the container using a thermometer capable of
reading ±0.1 degree increments.
3 Place the container centrally inside the oven.
4 Select ‘Microwave Power Test’ (C) from the
service mode tests. (Microwave power 100% for
63 seconds, fan minimum).
5 When the countdown has fi nished, remove the
container from the oven, immediately stir with
a plastic implement and measure the water
temperature.
6 Calculate the temperature rise of the water (end
temperature minus the start temperature).
If the temperature rise is outside these limits:
£
Check the microwave circuit and components,
(Testing Components section). Replace
magnetron and/or HV diode board if required.
The Temperature Rise should be:
25.7°C (78.3°F) ±5%