Merrychef 402s Service & Parts Manual

39
402s Ovens Part. N
o.
32Z3539 Issue 5
Remove and Clean Air Filters.
If Dirty—Advise operating staff of the need
for this to be carried out on regular basis.
See User Manual
Still have a problem.
Error reported =
Magnetron or
Ambient
Ambient Magnetron
Check Location of oven is away from any
major heat sources.
Recommend re-location if necessary
Location fine and still have a problem.
Check cooling fan operation. Make sure there is Noticeable airflow from
air vents at the rear of the oven.
If Not investigate and replace cooling fan if necessary.
Fan is fine and I still have a problem.
The Ambient Air Sensor is located on the
Relay PCB. Measure the temperature in
the area with all the case work in place
using a Thermocouple Meter
< 60°C
> 60°C
Cooling Air Flow
Problem into control
area.
Ambient Conditions
too hot
Check 15 ribbon Cable
-
Replace Relay PCB.
Note :- Each Magnetron
has a thermistor attached
to it. The control unit will
produce an error if the
temperature exceeds
130°C.
Establish if the magnetron
is actually getting hot.
Remember to take care
given the High Voltage in
the magnetron area.
Check sensor
connections.
Replace Magnetron.
4.0 Magnetron / Overheat issues
Temperature
reading

Merrychef 402s Specifications

General

Brand	Merrychef
Model	402s
Category	Microwave Oven
Language	English