I have a problem with my old stove VIKING EATON. i can't use it (i have no user manual). when i select Bake , only Broil works the bake the bottom element just warm (the element has no defects)but dosen't work i don't know why ?and this stove has 3 knobs (one TMER,one with stop sign and the third one a picture for man) i don't know how to use them.

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