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Recent content by Robert Tyrrell

  1. Robert Tyrrell

    Combi boiler temperature differential

    Thanks for the info. Flow rates are something that I do know about - just forgot when put on the spot. I'll have to find my flow rate jug now and go back tomorrow as I'm just getting my kit together to take one of my kendo students to another club for training this evening and he's only been...
  2. Robert Tyrrell

    Flip top plug stuck! Please help - any ideas!??

    You could try using a small flat bladed screwdriver to prise one side up. Are you certain that it's a flip plug and not a pop up one?
  3. Robert Tyrrell

    Combi boiler temperature differential

    2 years ago I installed a Baxi 836 and every year the owners complain about the water temperature. Last year I couldn't find anything wrong but this year there's definitely a low-temperature hot water output. Although this is usually a warranty claim I'm having difficulty with this as I messed...
  4. Robert Tyrrell

    URGENT Grant Combi 70 MK2 won't fire

    Update on this vexing problem. I'm not really sure what happened but - I was on the phone with Grant support and the lockout light appeared. I pushed it and the burner fired. I have no idea why it didn't do this before though and still don't although I have been through every terminal and link a...
  5. Robert Tyrrell

    Morning Everybody - Hope all is well? - What have we got on, how are we all doing?

    Morning all - doing ok here, especially as I'm trying to slow down a bit now I'm approaching 63. Business has been good up to now and I've had my second jab (on Tuesday) with relatively small side effects although I think that what I experienced might have been more to do with having the jab in...
  6. Robert Tyrrell

    URGENT Grant Combi 70 MK2 won't fire

    Thanks for the assistance guys: Simon G - The spare burner is brand new - straight out of the box so I really don't think that there's a problem at the burner end, and as far as I can remember, it does have 230 at the live on the control box so I think it's more than likely to be the controls...
  7. Robert Tyrrell

    URGENT Grant Combi 70 MK2 won't fire

    I'll check back in the morning but I'm on a first aid course tomorrow afternoon so it's waiting until Friday anyway
  8. Robert Tyrrell

    URGENT Grant Combi 70 MK2 won't fire

    I actually have 230 at terminal 9 which suggests that the motor should run and the burner should fire but it doesn't
  9. Robert Tyrrell

    URGENT Grant Combi 70 MK2 won't fire

    I don't know why but I can't see the wiring diagram that I attached initially so here it is
  10. Screenshot 2021-05-26 at 15.25.17.png

    Screenshot 2021-05-26 at 15.25.17.png

  11. Robert Tyrrell

    URGENT Grant Combi 70 MK2 won't fire

    Riello RBD1 and the motor doesn't turn over - that's the problem I think because, if memory serves me right, the motor runs the fan first then the solenoid kicks in to allow the oil in while the ignition starts to spark. I can't get the motor to run at all.
  12. Robert Tyrrell

    URGENT Grant Combi 70 MK2 won't fire

    Because I wasn't certain if it was operating properly and I was trying to get this done quickly - it's a holiday cottage (currently being let as well) and I do all this guy's properties but this is the only one with an oil boiler. I have to repair it every year without fail. Besides - I had a...
  13. Robert Tyrrell

    URGENT Grant Combi 70 MK2 won't fire

    Thanks - I know it's on the control side but I just can't work out where and if you've ever seen one of these you'll know what a nightmare it is to work on. You have to virtually dismantle to the casing completely as you can't get to the wires because of how they're routed. Cheers anyway
  14. Robert Tyrrell

    GRANT 26 COMBI OIL FIRED BOILER. INCONSISTENT HOT WATER

    Not sure if you've got to the bottom of this but before you fit a pressure regulator just get a pressure gauge on the garden tap and that should tell you if you need one. As for the reduction in water temperature, I would think that it's a faulty fow switch. Good luck with this.
  15. Robert Tyrrell

    URGENT Grant Combi 70 MK2 won't fire

    I've fitted a completely new burner to a Grant Combi 70 and the motor will not run (so consequently the burner won't fire) despite there being live 230v power to the control box. I have read the wiring diagrams and even spoken to Grant themselves but I cannot get to the bottom of the problem so...
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