Cylinder stat
- Thread starter noddy997
- Start date
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Ecotec 438, 2009 model
That, depends upon how it is wired - Some pumps are directly controlled by the 3-port valve, others are wired to the boiler, so the boiler turns the pump on. That allows the boiler to keep the pump running after the demand is satisfied, to remove residual heat from the boiler.
If you have Mis for that model, please post them, if they are anything like the ones for the Ecotec PLUS then there is some very useful information in the S (status) codes which should be interrogated when the pump starts but not the boiler, on the PLUS model the boiler certainly seems to control the pump, you can see certain ones inhibit the boiler firing (but there will be no alarm), these are just status codes.
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I just remembered my wiring centre is bagged to prevent any moisture entering it. With the cover screwed on and then bagged. This was done few months ago.
Any moisture would now be entering the pump wiring, cylinder stat or the 3port valve (where the lever is). Pump works fine.
Any moisture would now be entering the pump wiring, cylinder stat or the 3port valve (where the lever is). Pump works fine.
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