The light does flicker briefly when starting. Sometimes banging on the case will get the light, fan and turntable to come on.
Hi Ted
many microwaves have safety mechanisms to reverse, or stop the turntable if it senses resistance to the turning. This is done both because
In some cases, it'll just stop and then try again the next time you run the microwave. The banging on the case sometimes turning things back on suggests that either something in the turntable mechanism is awry, or that there is a common hot wire, ground loop, or possibly fuse for the light/fan/turntable.
the manual for the oven doesn't really say anything about this.
You can see generic intructions on looking for an internal fuse here
Panasonic Microwave NN CT552W has no power plug fuse ok Has it got thermal... . Please, in particular, make sure you unplug the oven before opening anything. This is one of those devices where defeating the interlocks and having it turn on can seriously hurt you.
With regard to the turntable, in particular, it's really easy over time for exploded spaghetti sauce, spilled cocoa, and overmelted butter to have run down into the indentation in the middle of the bottom of the oven cavity. Remove the platter. Is it clean in there? Does it look like the 'this person never flosses' picture for mechanical rotors? If so, start with some kitchen cleaner and a washcloth damp (not soaked) with hot water. Let the cloth steam /warm the area a bit, wipe it down. repeat if necessary. If there's a lot of cruft built up there, that could be keeping you on the edge of safety shut-down.
Good Luck!
D
Panasonic Microwave NN CT552W has no power plug fuse...
Panasonic Microwave NN CT552W has no...
Testimonial: "The turntable mechanism is clean. Even if they weren't that doesn't explain why the fan and light don't work..."
Hi again Ted.
My next round of possibilies would go with the intermittent power to the light and fan, and being able to get them to turn on again sometimes with banging on the case. It could indicate a loose connection or connections inside. The fan and light will both be simple single-loop circuits.
Does the light come on when you open the door? I'm recalling that when I open my microwave, the light comes on. When I run the microwave, the light and the fan come on. That'd suggest that there may be a common switch or relay that will connect a common hot lead or ground for both devices. If the light comes on when you open the door, then that would lean me toward there being another wire loop for the fan an light together. Depending on the construction, a wire nut may have come loose so that the wires are loosely twisted together but not in firm contact. It'd require you to open up the case and trace the wire(s) to the light and fan. If you go that route, no harm in giving a check to all the connections.
Make sure, again, to unplug before going this route. Sorry the first guess wasn't hit :-)
Good Luck!
D
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