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Posted by Harold hydronicnetwork.net on December 29, 2003 at 12:39:38:
In Reply to: Vaillant vcw sine t3 wf h posted by Graham Gibbs on December 29, 2003 at 11:52:16:
The cause of the problems is obvious. The warrantees on these units require that the repair book be noted each time the registered gas repairman visits. The fact that this poster does not know who services the unit means that the unit has not been serviced as required by the factory, so the unit does not work.