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No AC to Riello 40 Series Burner

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  • 17-09-2013 8:42pm
    #1
    blobbyblob
    Registered Users Posts: 126 ✭✭


    Hi All,

    In a bit of a quandry. Woke up this morning to find that we had no heating. The timer switch is on and working but I've gone to the burner it was still warm suggesting that it had fired recently. I went to work and came home to start troubleshooting. The burner was still warm to touch as if it had fired recently again. I suspected the capacitor or control unit may be gone but there's no light on the reset switch that would normally be on.

    I've just checked the AC on L and N on the sub base and its reading 0V AC.

    Where next? Thermostat?

    Is there a system fuse somewhere that may have popped?

    Thanks

    Dom


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    #2
    shane0007
    Closed Accounts Posts: 4,677 ✭✭✭shane0007


    Is there power to the high limit stat?


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    #3
    sullzz
    Registered Users Posts: 2,409 ✭✭✭sullzz


    blobbyblob wrote: »
    Hi All,

    In a bit of a quandry. Woke up this morning to find that we had no heating. The timer switch is on and working but I've gone to the burner it was still warm suggesting that it had fired recently. I went to work and came home to start troubleshooting. The burner was still warm to touch as if it had fired recently again. I suspected the capacitor or control unit may be gone but there's no light on the reset switch that would normally be on.

    I've just checked the AC on L and N on the sub base and its reading 0V AC.

    Where next? Thermostat?

    Is there a system fuse somewhere that may have popped?

    Thanks

    Dom

    Sub base ?
    Has the high limit stat tripped ( the stat on the top of the boiler , button under black screw cap )


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    #4
    agusta
    Closed Accounts Posts: 1,590 ✭✭✭agusta


    blobbyblob wrote: »
    Hi All,

    In a bit of a quandry. Woke up this morning to find that we had no heating. The timer switch is on and working but I've gone to the burner it was still warm suggesting that it had fired recently. I went to work and came home to start troubleshooting. The burner was still warm to touch as if it had fired recently again. I suspected the capacitor or control unit may be gone but there's no light on the reset switch that would normally be on.

    I've just checked the AC on L and N on the sub base and its reading 0V AC.

    Where next? Thermostat?

    Is there a system fuse somewhere that may have popped?

    Thanks

    Dom
    I think your burner and AC voltage are ok.what is the thermostat stat set to on the boiler?,if you turn up the thermostat on the boiler does the burner fire?,it could just be a water circulation issue or if you have zones it could be a room thermostat,also is there AC going to the circulating pump and is it working..


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    #5
    blobbyblob
    Registered Users Posts: 126 ✭✭blobbyblob


    Sure enough I went out to check the Thermostat. Unscrewed the black cap and tried to press the button. Nothing happened.

    I unscrewed the cover of the thermostat to check the AC values. There was a sound from the thermostat and about 5 seconds later the boiler fired up. It burned for about 4 minutes before cutting out. I checked the heating inside to see was there any circulation and the pipes were stone cold.

    I turned the thermostat from 75 degrees up to 90 and it fired again before cutting out again after a minute. That was about 15 minutes ago and nothing since.

    Thermostat issue or pump issue?


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    #6
    sullzz
    Registered Users Posts: 2,409 ✭✭✭sullzz


    I'd say pump or airlock , is the pump spinning ?


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    #7
    agusta
    Closed Accounts Posts: 1,590 ✭✭✭agusta


    blobbyblob wrote: »
    Sure enough I went out to check the Thermostat. Unscrewed the black cap and tried to press the button. Nothing happened.

    I unscrewed the cover of the thermostat to check the AC values. There was a sound from the thermostat and about 5 seconds later the boiler fired up. It burned for about 4 minutes before cutting out. I checked the heating inside to see was there any circulation and the pipes were stone cold.

    I turned the thermostat from 75 degrees up to 90 and it fired again before cutting out again after a minute. That was about 15 minutes ago and nothing since.

    Thermostat issue or pump issue?
    Id check the AC to the pump,then unscrew the screw cap on the pump house casing and see is the pump circulating...


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    #8
    agusta
    Closed Accounts Posts: 1,590 ✭✭✭agusta


    blobbyblob wrote: »
    Sure enough I went out to check the Thermostat. Unscrewed the black cap and tried to press the button. Nothing happened.

    I unscrewed the cover of the thermostat to check the AC values. There was a sound from the thermostat and about 5 seconds later the boiler fired up. It burned for about 4 minutes before cutting out. I checked the heating inside to see was there any circulation and the pipes were stone cold.

    I turned the thermostat from 75 degrees up to 90 and it fired again before cutting out again after a minute. That was about 15 minutes ago and nothing since.

    Thermostat issue or pump issue?
    The thermostat is working correctly


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    #9
    shane0007
    Closed Accounts Posts: 4,677 ✭✭✭shane0007


    Is there water in the boiler?


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    #10
    blobbyblob
    Registered Users Posts: 126 ✭✭blobbyblob


    shane0007 wrote: »
    Is there water in the boiler?

    I hope so!


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    #11
    blobbyblob
    Registered Users Posts: 126 ✭✭blobbyblob


    agusta wrote: »
    Id check the AC to the pump,then unscrew the screw cap on the pump house casing and see is the pump circulating...

    I'll give it a while to cool down. Its raging hot!


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    #12
    shane0007
    Closed Accounts Posts: 4,677 ✭✭✭shane0007


    You may not have if the HL tripped.


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    #13
    jimf
    Registered Users Posts: 3,955 ✭✭✭jimf


    any 1of 3 things low water level circulating pump or airlock


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    #14
    blobbyblob
    Registered Users Posts: 126 ✭✭blobbyblob


    shane0007 wrote: »
    You may not have if the HL tripped.

    Is this the feed tank in the attic youre talking about?


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    #15
    shane0007
    Closed Accounts Posts: 4,677 ✭✭✭shane0007


    No. Water in the boiler itself. Open air vent on boiler but be careful as it will most likely be super steam exiting.

    You could check the resistance of the circulating motor also.


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    #16
    blobbyblob
    Registered Users Posts: 126 ✭✭blobbyblob


    Just undid the screw cap on the front of the casing of the pump and it was seized inside. A little encouragement with a screw driver and shes spinning freely now. Just waiting for the boiler to cool before retesting now. Fingers crossed.

    Failing that it will be a double duvet night - at least for tonight!


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    #17
    jimf
    Registered Users Posts: 3,955 ✭✭✭jimf


    blobbyblob wrote: »
    Just undid the screw cap on the front of the casing of the pump and it was seized inside. A little encouragement with a screw driver and shes spinning freely now. Just waiting for the boiler to cool before retesting now. Fingers crossed.

    Failing that it will be a double duvet night - at least for tonight!


    jaysus its only sept yet how many duvet in December


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    #18
    agusta
    Closed Accounts Posts: 1,590 ✭✭✭agusta


    blobbyblob wrote: »
    Just undid the screw cap on the front of the casing of the pump and it was seized inside. A little encouragement with a screw driver and shes spinning freely now. Just waiting for the boiler to cool before retesting now. Fingers crossed.

    Failing that it will be a double duvet night - at least for tonight!
    great,it should be ok now,the armature in the pump sometimes get stuck when it hasnt been running over the summer months


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    #19
    shane0007
    Closed Accounts Posts: 4,677 ✭✭✭shane0007


    Switch it on if the pump is now working. The pump will dump the heat from the boiler into the heating system. If boiler fires after a while, then pump is working. If not, pump is dead or slow.


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    #20
    blobbyblob
    Registered Users Posts: 126 ✭✭blobbyblob


    Agusta, Jim, Shane, Everyone! - Take a bow. You guys are in my debt tonight.

    Piping hot water back in circulation! You have no idea.

    Single glazing wooden windows, 8" slab concrete prefab bungalow with no wall insulation which bakes in the summer and freezes in the winter. Double duvet would be a minimum requirement :)

    Thanks so much again!!


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    #21
    jimf
    Registered Users Posts: 3,955 ✭✭✭jimf


    blobbyblob wrote: »
    Agusta, Jim, Shane, Everyone! - Take a bow. You guys are in my debt tonight.

    Piping hot water back in circulation! You have no idea.

    Single glazing wooden windows, 8" slab concrete prefab bungalow with no wall insulation which bakes in the summer and freezes in the winter. Double duvet would be a minimum requirement :)

    Thanks so much again!!


    ur welcome and thanks for feedback youd be surprised how many don't


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    #22
    agusta
    Closed Accounts Posts: 1,590 ✭✭✭agusta


    Your welcome,Dont forget to turn your thermostat back down from 90 to what you normally have it set at.


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    #23
    blobbyblob
    Registered Users Posts: 126 ✭✭blobbyblob


    agusta wrote: »
    Your welcome,Dont forget to turn your thermostat back down from 90 to what you normally have it set at.

    The missus can do that! Shes been roaring since 6.30 am :P


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    #24
    Billy Bunting
    Registered Users Posts: 2,842 ✭✭✭Billy Bunting


    blobbyblob wrote: »
    Agusta, Jim, Shane, Everyone! - Take a bow. You guys are in my debt tonight.

    I think it would have been nicer if it was you in their debt :D


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    #25
    blobbyblob
    Registered Users Posts: 126 ✭✭blobbyblob


    Billy Bunting wrote: »
    I think it would have been nicer if it was you in their debt :D

    Haha - fact Billy. But then again, I was thinking that they would have had nothing to get their teeth stuck into this evening without me - I was doing them a favour!


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