Long storage can involve moisture, missing fittings, transport and uncertain electrical condition. It needs the model's appropriate inspection and startup process rather than simply assuming yesterday's settings still apply.
What the observation tells you
Check safely for visible damage and contamination, without opening service panels. An appliance kept in unsuitable surroundings may need competent assessment. Its first successful light or sound does not establish reliable conditions in both compartments.
A useful next step
Follow handling and restart instructions, clean as permitted and verify suitable storage before loading food. Obtain advice for damage or unexplained warnings instead of repeated test starts.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.