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  1. O

    Vokera linea 28 domestic hot water problem

    I was in the wrong to change thermistors first will listen to advice in future.again thanks to everyone for their help
  2. O

    Vokera linea 28 domestic hot water problem

    why pay for something that does not need changing
  3. O

    Vokera linea 28 domestic hot water problem

    I work as an industrial maintenace tecnician on automated machine and the last distubution board I changed in a domestic/ commercial location was a long time ago,now it only plant brakedowns and some machine installation.The faults on automated plant are are not aways just replace it and see if...
  4. O

    Vokera linea 28 domestic hot water problem

    I think I have made a big mistakeand taken the temp reading on the main heat exchanger not the domestic heat exchanger :oops:
  5. O

    Vokera linea 28 domestic hot water problem

    Is there a correct way to express the temperature readings ie inlet/outlet or is it outlet/inlet thanks for all the response to my post here how to get the degree symbol Note You must use the numeric keypad to type the numbers and not the keyboard. Make sure that the NUM LOCK key is on if...
  6. O

    Vokera linea 28 domestic hot water problem

    I have taken temperature readings on the inlet and outlet pipe work on the plate heat exchanger with a contact k-type temperature probe and Fluke temp meter. Reading were 72ºc and 90ºc .When the thermistor arrive will try the low cost fix already fitted service kit for water flow switch and...
  7. O

    Vokera linea 28 domestic hot water problem

    Thank you both for the quick replys will change both thermistor when I can get hold of them ,did the test procedure in post from scatmanjohn.The temp readout went up to 90. What other tests can be done to isolate fault to plate heat exchanger.If plate heat exchanger is blocked what would the...
  8. O

    Vokera linea 28 domestic hot water problem

    Hi to all member of this forum . Please could some one help our give guideance on a hot water problem with a Vokera Linea 28. When any hot water tap is opened the boiler fires up and the water temp rises, when the digital temp reads 50 the boiler goes out .When the digital temp goes down to...
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