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Ron342 · 01-19-16, 10:14 AM

Might try running up the pressure to a 250 or so with nitrogen and slimeing the coil (and everything else you can reach) with soapy?
And it could be in the water coil - fill it slowly with water and look for bubbles and sniff it too.

01-19-16, 10:14 AM	#23
Ron342 Apprentice EcoRenovator Join Date: Feb 2010 Location: Maryland Posts: 120 Thanks: 26 Thanked 12 Times in 8 Posts	Might try running up the pressure to a 250 or so with nitrogen and slimeing the coil (and everything else you can reach) with soapy? And it could be in the water coil - fill it slowly with water and look for bubbles and sniff it too.