Discuss Glow worm 30CXI HELP PLEASE. in the Plumbing Jobs | The Job-board area at PlumbersForums.net

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Kev the gas

Evening all, I was asked to look at a 30 CXI combi for my childrens scout leader this afternoon.

3 amp fuse is fine, carried basic checks as usual.

Lcd display totally blank, no power at all to the internal fast blow fuse.

Checked the on off switch and is supplying 240 v to the pcb, slight buzzing noise from the pcb when the on/off switch is held in the midway position.

M I on site do not mention blank lcd at all, pressure was topped up, over heat stat was checked for continuity.

New Main pcb has been ordered and hopefully comes tomorrow, any tips on checking before fitting as I dont want to ruin a good pcb if something has taken out this one.

Not many of these around here so havent played with one yet !

Kev.
 
just check resistance of parts, may need to speak to gw to get values and which wires to test
 
More often than not it just the board itself on these, but as above check the usual suspects (fan, pump etc) resistance, just in case another component has blown the board.
The MI's should give most values.
 
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