No hot water, Tado not firing up Boiler / Boilermate

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We have not had any hot water for 2 days now - the Tado doesn't seem to be firing up the Boilder (a Worcester 30CDI) which is connected to a Gledhill Boilermate 2000.
I can run the heating test off the receiver successfully but not a hot water test - no lights when I press that (although I don't know if that was ever on!)

Any help much appreciated.

Answers

  • davidlyall
    davidlyall ✭✭✭
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    Have you tried turning it off at the mains for 30 seconds and back on. May just be a sticking relay in the unit although I'm not sure if the HW light would still come on in that situation

    Worth a try but suspect you may need Tado support involvement

  • Scools
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    Thanks - I have contacted Tado support and they have now added the Hot Water option in the App (which I have never had but hot water has always worked). The Hot Water light is now on the device but the water is still cold.
    Will try turning off at the fuse like you mention.

  • davidlyall
    davidlyall ✭✭✭
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    Interesting.

    When the HW light comes on, does the boiler fire?

    Assume you have a HW tank. Do you know what type of system you have S (two or more 2-port valves) or Y plan (3-port valve)? You may have a sticking valve which appears to be more common on the Y plan set ups

  • SPBonzo
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    I have exactly the same problem. Turning the heating on turns on the boiler and all works fine but the boiler is hit and miss when the water turns on via either the schedule or manually. It's probably a 50\50 split in working or not.

    This has worked fine since the Tado system was fitted but we've encountered the water-only issue for at least 6 weeks now. I've contacted Tado who want me to mess about with wiring which I'm not going to do. The boiler engineers have been out twice and confirmed everything appears fine and this is yet another example of similar Tado\Nest issues that they've experienced.

    Tado says that the water is ON but the boiler doesn't always turn on. The problem is usually rectified by turning the water off\on a few times and then the boiler magically kicks in.

  • hugbilly
    hugbilly ✭✭✭
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    Sounds like the mid position valve might be to blame, assuming you’re Y plan, the actuator can be replaced quite cheaply . . .