The customer stated the burner would come on then go out. He also said the power venter he would have to bang on it for it to come on sometimes. He does not want the power venter replaced. He’s trying to get one more year out of the system then replace it next year. The reason the burner was nit staying on is due to the cad cell eye having black soot all over it. The reason for this is a weak ignition transformer. Recommended to replace it. Cleaned the cad cell eye off and the system ran okay. The customer does not want any repairs made at this time.