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    Heatslave 20/25 no power to room stat

    I can't get my multimeter into the block because the space is too tight, I will need to take the panel off again.. but, see below.. I put that link back in when I removed the room stat wiring and nothing was working. As above, the space is too tight for the length of my multimeter pins so...
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    Heatslave 20/25 no power to room stat

    I checked where the room stat connects to the PCB and I am getting nothing. I checked between 2&6 and 3&6.
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    Heatslave 20/25 no power to room stat

    Thanks for the replies.. I haven't had chance to link the grey and brown wires, will hopefully give that a go tomorrow or the next day... working 12 hour shifts limits how much spare time I have.
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    Boiler pump running when no heat being called for

    My combi boiler has an internal hot water tank so there is instant hot water when called for, the boiler will often fire and run for a few minutes to keep the tank at a certain temp. That seems to be the only part of my boiler that wants to work properly at the moment though :D
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    Heatslave 20/25 no power to room stat

    Coming out of the programmer, there are 5 wires, Grey, White, Orange, Brown and Blue. The Orange and Brown are wired into the same hole of the 'chocolate' box connected to the PCB. So I need to link the Grey with the Brown on the chocolate box to check the relay? Sorry for dumb questions, I am...
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    Heatslave 20/25 no power to room stat

    It has the dual programmer, like the one in the picture. Obviously wasn't using it when I fitted the room stat, and I removed the wiring for the room stat yesterday because the digital screen was blank and wouldn't switch on, reinstating the link on the PCB. It looks like there is no power...
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    Heatslave 20/25 no power to room stat

    I have found my multimeter, tried looking for it last night and couldn't find it anywhere... but anyway, any circuits in paticular? I have the dual programmer fitted, one for water and one for heating. The display looks fine, I can scroll through the heating off, once, twice, on and the boiler...
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    Heatslave 20/25 no power to room stat

    Hi Chris As far as I know, on this boiler the diverter valve simply opens/closes the hot water feed to the rads when the heating is on/off. It can be a bit annoying in the summer because when you turn the hot tap on, it also sends the hot water around the rads, so when it is sticking, like now...
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    Heatslave 20/25 no power to room stat

    Hi everyone I hope this isn't too long winded, but I understand how it is best to have all the info before trying to help. My boiler is working fine for water, but not for heating. Heatslave 20/25 boiler, approximately 19 years old. When fitted, no room stat fitted. A few years ago I posted on...
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    Instant electric water heater for shower and sink

    Not at all helpful, but when my boiler was broken, I often used my shower to fill up my sink, was just as quick as turning the tap on.
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    Worcester Bosh Heatslave 20/25 Room Thermostat

    While looking on the internet earlier to try and resolve the connectivity, to no avail, I did see there were three or four different brand names with the same stat as I have, probably bulk manufactured somewhere and branded dependant on order. When I popped the front off, the rear of the unit...
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    Worcester Bosh Heatslave 20/25 Room Thermostat

    I am thinking the stat is connecting to my router on the wrong channel, it says it can only use 2.4ghz and not 5ghz, so I am going to have to see if I can work out what IP address it has been assigned and make sure it is on the right channel. There is also the issue of the stat saying the room...
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    Worcester Bosh Heatslave 20/25 Room Thermostat

    All set up and seems to be working, thank you for your help Stem. Can't get the thermostat connected to my phone yet, but apparently that isn't unusual.
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    Worcester Bosh Heatslave 20/25 Room Thermostat

    Looks like I will be off to B&Q to get a long enough length of cable :)
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    Worcester Bosh Heatslave 20/25 Room Thermostat

    Just realised the 5 and 6 are the other way around on the one I have, so I would need to Bridge L and 5 on the thermostat and connect boiler terminal 3 to 6?
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    Worcester Bosh Heatslave 20/25 Room Thermostat

    The rear of the one I have ordered is the same as the one you pictured. The instructions say to connect L and N to 220 voltage power, 5 and 6 to your gas boiler, 1 and 2 are thermal actuators, please do not connect them to your gas boiler. My boiler is oil, and according to the FAQ's when I...
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    Worcester Bosh Heatslave 20/25 Room Thermostat

    Thank you for the diagram :) I did think the boiler program would have to be set to on, so thanks for confirming.
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    Worcester Bosh Heatslave 20/25 Room Thermostat

    One of the issues with my boiler is the diverter valve, it doesn't seem to be a very good design and gets stuck open, so when the heating is off and you turn the hot water tap on, it sends the hot water around the heating system. I have replaced the valve at least 3 times over the years.
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    Worcester Bosh Heatslave 20/25 Room Thermostat

    I have just ordered one from Amazon, hoping to get it fitted tomorrow or the next day, I am going to have to see where to put it and make sure I have enough cable to run from the boiler to where ever I site it.
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