Service manual

Page 6 Mealstream Ovens 32Z3387 Issue 3
Models with electronic controls identify some of the most common problems by flashing an
error message code in the time display window.
Error Message Possible Cause Service
1
2
Door not fully shut
Possible electrical fault
Close door fully
Check Microswitch Door Circuit
Check Microswitch Connection to PCB
Check Ribbon Cable
Check Relay PCB & Logic PCB
1
2
3
4
5
No time has been set
Invalid time has been set
Invalid program has been set
Number pad failure
Memory Failure running a
Program
Set a time
Set a valid time
Use call-back to check program
(MenuKey: no key downloaded)
Membrane key short circuit
Re-Program Pad,
if fault repeats replace Logic PCB
1
2
Oven not heating up
Possible Heater circuit fault
Check heater fuse
Confirm operation of heater, overheat
stat and heater circuit
1 Oven Cavity overheating Check cavity sensor
Confirm heater relay is operating
1 Oven is not at correct
temperature to start program
Operator Error !!
Allow oven to reach correct
Programmed temperature
1 Oven control area is
overheating.
Check air filters
Check axial fan
Check installation for hot air intake
MenuKey removed before the
download is complete
or the process has been
interrupted.
Switch oven off and begin the MenuKey
download again.
Error codes and diagnostics