The unit will turn on, I can see the ingiter go on, but it will turn off before it ignites. I can get the unit to ignite by tapping one of the small switches inside that has a vacume tube attached. But it will not stay lit for long and then it coninue the same cycle. II had a service man look at it, but he wanted to replace the entire thing. I did find water in the vacume line about 2 years ago and that sovled the problem till now. The unit is only 6 years old and the 90% type.
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