Mains supply frequency is ±2% from nominal or interference e.g., an internal
microwave leak? Most of the issues found here are related to an unstable power
supply of the building, i.e., Generators. It is recommended to check the supply
and/or analyse the error log on a computer
Ensure there are no microwave leaks by inspecting the unit with a suitable
microwave leak detector
Ensure there is a bowl (suitable for microwaves) of water (250ml cold) and activate a
microwave leak test in the service screen mode. Check around the door seals front
and rear of the unit. If microwave leaks are observed (if a level of 5mW/cm
2
or
higher is observed the oven must not be used until repaired) unplug from the mains
and investigate. Note: there should be no microwave leakage and corrections
should be made if any leakage is detected above 0.5mW/cm
2
.
Check for damaged cavity thermocouple
Solution not required if event recorded after mains power has be supplied to the
oven (E100) or during successful firmware updates.
Check all QTS & SRNB connections.
Check condition and connections on communication cable, SRB X11 to QTS X4.
Solution not required if events correspond with normal operation.
Check connections and on/off switch if event is recorded multiply times in quick
succession
Event recording no longer in use.
Download the up to date firmware from merrycheftechnical.com and load on to
the oven
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