Vokera Excell 80 sp fault!

Rob

Rob

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Hi guys!

The fault seems to be no power to the pump, not too sure on sequence of boiler so ill explain what happens

Slow fan speed 150vac to fan

Creating HW demand has no effect

Manually operating Pump flow switch creates full fan speed and burner to ignite.

Assume its the PCB just not sending power to pump?

thanks rob

Also is there just one board on this boler? Why is it such a big box?
 
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How have you turned on water ie did you link out dhw microswitch also there is a difference between teh early 80sp & the later one
 
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