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Boiler not draining??

  • 30-11-2012 9:58am
    #1
    Registered Users Posts: 838 ✭✭✭


    Hi,
    This is our first winter with the MH, so I'm going through the winter checks now. I drained the waste and water tanks a few days ago - remembering to leave the taps open and run the pump for a bit to fully drain. But I remembered yesterday that I hadn't one anything with the boiler. So I went out last night and pulled up the small little release tap that's on the floor beside the boiler. Nothing drained to the outside - I can see where the drain point is on the under-carriage. I really doubt that the contents of the boiler would have gotten to freeze yet. Would my draining of the main water tank have pulled the contents from the boiler? We barely use it - but we know it is functioning, have gotten hot water from it in the past few months.

    thanks


Comments

  • Registered Users Posts: 713 ✭✭✭WildWater


    Maybe it has self drained. Mine has a drain valve (little vertical cylinder switch) that drops down when the temperature drops below 5Deg. When it drops (or when you push it down) it drains the boiler. It sounds to me like you have just closed the drain valve and that your boiler is already empty.


  • Registered Users Posts: 838 ✭✭✭kelbal


    Thanks. I read the Truma manual on it, and it says to pull the switch up to drain, which is what I did. The manual said this must be done in freezing temperatures, doesn't say anything about self-drain


  • Registered Users Posts: 2,030 ✭✭✭niloc1951


    If the valve is like THIS ONE the red bit drops down automatically at about 4°C to drain the boiler and pulling it back up closes the valve.


  • Registered Users Posts: 838 ✭✭✭kelbal


    niloc1951 wrote: »
    If the valve is like THIS ONE the red bit drops down automatically at about 4°C to drain the boiler and pulling it back up closes the valve.

    No, mine is like this one. Flat is closed and pulled up opens it I think.....

    http://www.leisureshopdirect.com/caravan/water/product_25494/Safety_valve_and_drain_tap_for_Truma_Boilers.aspx


  • Registered Users Posts: 2,030 ✭✭✭niloc1951


    kelbal wrote: »
    No, mine is like this one. Flat is closed and pulled up opens it I think.....

    http://www.leisureshopdirect.com/caravan/water/product_25494/Safety_valve_and_drain_tap_for_Truma_Boilers.aspx

    Perhaps the boiler drained with the tank, if there was any water in the boiler it should definitely run out of that tap was opened, unless the outlet pipe is blocked with a bit of mud or something :confused:


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  • Registered Users Posts: 838 ✭✭✭kelbal


    niloc1951 wrote: »
    Perhaps the boiler drained with the tank, if there was any water in the boiler it should definitely run out of that tap was opened, unless the outlet pipe is blocked with a bit of mud or something :confused:

    yeah, might stick a pipe cleaner up the drain!


  • Registered Users Posts: 2,213 ✭✭✭Aidan_M_M


    yep , up to drain . Possibly the draining of the tank siphoned the water out of the boiler .


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