Sensible Topic Anyone know about gas boilers ?

goldeneagle1

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Just trying to find out about repairing a gas central heating boiler. Boiler starts (pump starts not the fan or flame ) & then about 30 seconds later red light comes on indicating a fault. In the past boiler had same symptoms and had these sensors replaced (see photo ). I'm not sure what they are or how to test them, I suspect they are pressure activated switches to give a yes/no to ignition board. Boiler is a raven heat csi 85. Any help in testing these or ideas on common faults on this boiler most welcome.

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Does anyone know where I can purchase the relays in this photo. Seen lots on auction site but not same numbers. I'm not sure how the numbers correspond to layout & switching function. Would be great if someone can post or send a link to purchase these or suitable equivalent.

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Does anyone know where I can purchase the relays in this photo. Seen lots on auction site but not same numbers. I'm not sure how the numbers correspond to layout & switching function. Would be great if someone can post or send a link to purchase these or suitable equivalent.

Sent from my SM-G900F using Tapatalk 2

Is that the part number in the top right? Whats the numbers mate? Hard to make out.
 
@chookey ok mate no worries.
Was going to have a little search for them if he could give me the numbers but that saves me the hassle :)
 
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