Cold food – Merrychef 402s User Manual
Page 32
402s Ovens Pt. No. 32Z3522 Issue 6
32
Check Current using clip on current
meter through F7 and F8. When
running Microwave only. You will
need to reset the pre-heat
temperature to 0 and enable manual
control via the profile setting. Make
sure that there is a water load in
the cavity.
Check that the
stirrer is rotating.
Replace stirrer motor
and retest
Carry out Microwave Output Test
Check Microwave Generating system
• Transformer
• Magnetron
• Capacitor
• Diode
Possible Temperature Sensor Fault.
Assuming sensor Ok then make sure
door Light on logic PCB is on when
door closed. If this is working then
replace Logic PCB.
Also, check that convection motor is
operational
Contact Merrychef Service
Department for Further
assistance.
Cold Food
Check Convection
Temperature control
OK
NO
Less than
5 Amps
More than
5 Amps
No
Yes
LOW
OK