My tenma desoldering station model 72-6340 has worked pretty well since I purchased it a few years back. The desoldering pump motor runs but it stopped providing any suction this week. I unplugged the vacuum line and tested with my hand and zero suction. Removed the case cover and inspected inside for any sign of blockages or broken vacuum lines. Nothing out of ordinary. Called MCM tech support where I purchased it. Was told they don't sell replacement vacuum pumps for the station so now I have a $280 dollar boat anchor on my work bench. Anyone know a source for the replacement vacuum pump? It just screws in with a couple of electrical spade connectors and the two vacuum lines.

The pump is a Thomas 1420VP/24VDC part number 14200002. Seems to be a German manufactured part but called a Gardner Denver Product. Looks like some of places on web wanted over $200 USD for it!!

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I took the pump apart and cleaned the small rubber diaphragms with alcohol on the both ends and made sure all the lines were clear and not blocked. Put it back to together and it is sucking again! There sure was not much indication of flux buildup but it apparently does not take much to gunk things up..

Thanks for all the help. I will probably have to do this periodically, even with new filters.