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Worcester Bosch Highflow 400 Clicking Relay Electrical Problem

Hi
Wonder if anyone can help. My WB HF400 boiler regulary starts 'clicking'repeatedly. When I look at the circuit board, there is a sort of gasfilled diode or something labelled SG1 and it keeps flashing and at thesame time, the relay labelled K2 clicks on and off. It doesn't heatwhen in this mode. Then, when it settles down, it seems to worknormally for a while before it starts again.
Just wanted to check if it something simple asI had a problem a couple of months ago and I called WB, for an expensive engineer to cut an inchoff the end of the plastic pressure sensor pipe which had a pin-hole init - wonder if it is a similar problem.

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The clicking sound is the ignitor trying to lite the gas, as far as having a tech come out couldn't hurt, it is hard to help alot of people without hands on but if the situation is the same as before the it should take the same remedy to fix, but a tech is allways good to have around,

Posted on May 30, 2009

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Posted on Jan 02, 2017

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Worcester Bosch Highflow 400 Boiler - no hot water or heating


Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} Hi, this is Worcester, Bosch Group

Although we don't currently offer live technical support online, our Technical Support department will be able to help. Their number is 0844 892 3366 - they're open 6 days a week and on average answer calls within 20 second. If you want to know more about our Technical Support department visit our website

http://www.worcester-bosch.co.uk/homeowner/customer-service/customer-technical-support

We look forward to helping you

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