After multiple service calls to repair/replaced the igniters on our Viking Professional Range, we now keep a fire starter on the range top to ignite the burners. Two local service companies will not warranty either the Viking igniters or their repair/replacement because igniter parts are consistently defective if they are even available from Viking Parts. Viking Ranges will not return our calls. Nice range with chronically defective parts that are impossible to repair/replace. After more than $1,700 in igniter repair/replacement, don't expect to light my stove without a fire stick. Remember, most Viking sales people are painfully aware of the problem but totally avoid the issue before you purchase the range.