Deb,
It was opened, or left open, for a period of time?
If it was just opened up to change parts, BS, they are just looking to
make a fast buck.
But, if the system was open for any period of time (weeks) I would agree
with them, change the dryer.

Later,

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Terry--
74 Campmobile- (Clementine)
85 GL- (Delilah)
86 BMW 325 ES- (Eva)