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Ask The Trades › DIY Forum › Plumbing Questions › 105e instant

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105e instant (Read 4107 times)

watty GDPR opt-out	105e instant Mar 1^st, 2008, 2:19pm Iv'e been working on this boiler problem for a while now and could use some help. When dhw tap is opened and then closed again the dhw indicator stays on and boiler will not switch back to CH. Iv'e been on to baxi and they suggested div valve motorised head so I changed that to no avail, it's still the same.Any ideas anyone
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thescruff Global Moderator Trade Member Author Offline Who said plumbing was easy. Posts: 6037 Total Thanks: 147 For This Post: 0 Gender: Trade: Plumber	Re: 105e instant Reply #1 - Mar 1^st, 2008, 2:41pm Got any dripping taps I would have thought the valve itself was up the spout. Fortunately I have little to do with the rubbish, this boiler must rank alongside the suprima as the pitts. I will ask me buddy for an opinion. And welcome to the forum.
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watty GDPR opt-out Total Thanks: 147 For This Post: 0	Re: 105e instant Reply #2 - Mar 1^st, 2008, 2:53pm Thanks for the prompt reply and the welcome. I thought the valve myself but baxitech said otherwise.Think I'll just change the valve itself, unless your buddy has any ideas. Totaly agree with you on the instant, I've fitted 3 and had various probs with every one. thanks for your help.
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thescruff Global Moderator Trade Member Author Offline Who said plumbing was easy. Posts: 6037 Total Thanks: 147 For This Post: 0 Gender: Trade: Plumber	Re: 105e instant Reply #3 - Mar 1^st, 2008, 2:59pm I fired off a couple of emails and should get a reply back later today. I'm out tonight but will be back later.
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watty GDPR opt-out Total Thanks: 147 For This Post: 0	Re: 105e instant Reply #4 - Mar 1^st, 2008, 3:24pm thanks for the help. Have a good night .
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thescruff Global Moderator Trade Member Author Offline Who said plumbing was easy. Posts: 6037 Total Thanks: 147 For This Post: 0 Gender: Trade: Plumber	Re: 105e instant Reply #5 - Mar 1^st, 2008, 3:27pm Is this an Instant ??? In that case it sounds as if its a failed preheat sensor ( assuming there is one! ) making it think that it is still heating the store! I think you take the motor off to make it work in CH normal mode for the time being. It could always be a PCB fault but thats less likely.
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thescruff Global Moderator Trade Member Author Offline Who said plumbing was easy. Posts: 6037 Total Thanks: 147 For This Post: 0 Gender: Trade: Plumber	Re: 105e instant Reply #6 - Mar 1^st, 2008, 6:22pm It could be to do with the preheat if it's a 105 INSTANT, I don't think the 105e has one. So which is it! If the DHW flow switch little red light stays on it'll not switch to CH. Looks like you need to check the pre-heat then
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watty GDPR opt-out Total Thanks: 147 For This Post: 0	Re: 105e instant Reply #7 - Mar 1^st, 2008, 10:41pm Yes, its an instant but indicator flashes when heating the store I think.THis is staying solid. How do you do a pre-heat check
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thescruff Global Moderator Trade Member Author Offline Who said plumbing was easy. Posts: 6037 Total Thanks: 147 For This Post: 0 Gender: Trade: Plumber	Re: 105e instant Reply #8 - Mar 1^st, 2008, 10:57pm Quote: Yes, its an instant but indicator flashes when heating the store I think.THis is staying solid. How do you do a pre-heat check Tony said; I think you take the motor off to make it work in CH normal mode for the time being. I haven't a clue so I shall have to get the manual out
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thescruff Global Moderator Trade Member Author Offline Who said plumbing was easy. Posts: 6037 Total Thanks: 147 For This Post: 0 Gender: Trade: Plumber	Re: 105e instant Reply #9 - Mar 1^st, 2008, 11:00pm The manual says; 3.7 Sensor Fault 1. When the ( ) or ( ) neon is illuminated a fault on the hot water or central heating temperature sensor is indicated (Fig. 12). Contact your Service Engineer.
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thescruff Global Moderator Trade Member Author Offline Who said plumbing was easy. Posts: 6037 Total Thanks: 147 For This Post: 0 Gender: Trade: Plumber	Re: 105e instant Reply #10 - Mar 1^st, 2008, 11:18pm Looking through the manual you can use a multi meter to check the sensor
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watty GDPR opt-out Total Thanks: 147 For This Post: 0	Re: 105e instant Reply #11 - Apr 10^th, 2008, 7:39pm as the valve itself. give it a good clean and now its okay. cheers scruff. sorry for the slow reply
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