Problem with intermittent hot water temperature with shower

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Problem with intermittent hot water temperature with shower

Post  isw197 on Thu Feb 13, 2014 7:56 am

Hello and thank you for taking the time to read/reply to this post.

We have a Gledhill Systemate 2000 which was installed in a Wimpey new build back in 2003 (for what it is worth we are in postcode M28 near Manchester).   We have just started experiencing a problem with the shower running hot and cold.  The remainder of the hot water supply and central heating appears to be running fine.

The thermostat on the boiler is set to maximum and the reading for the temperature sensors within the thermal store are as follows:
T1 -   73
T2 -   85
T3 - H56

Am i correct in thinking we could have an issue with the heat exchanger?  Or could it be something else?  

Many thanks in advance for any replies.  

Ian


Last edited by isw197 on Thu Feb 13, 2014 8:15 am; edited 1 time in total (Reason for editing : spelling mistake)

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Re: Problem with intermittent hot water temperature with shower

Post  mike on Fri Feb 14, 2014 6:27 am

If every where else is ok.
Then your shower may be faulty. (thermostat)
Mike

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Re: Problem with intermittent hot water temperature with shower

Post  isw197 on Mon Feb 17, 2014 2:34 am

mike wrote:If every where else is ok.
Then your shower may be faulty. (thermostat)
Mike

Thanks for the response Mike - much appreciated! That thought had crossed my mind, but the shower is a simple mixer type. That typically wouldn't have a thermostat would it?


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Re: Problem with intermittent hot water temperature with shower

Post  mike on Mon Feb 17, 2014 8:37 am

Lol I would not know.
Google up the make & model and try to find out.
Even if it is a manual shower one of the filters could be blocked.
As you state all other DHW outlets are fine.
Mike

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Re: Problem with intermittent hot water temperature with shower

Post  isw197 on Sun Feb 23, 2014 3:17 am

okay, an update on this issue; i was reliably informed that the problem was isolated to the shower - so i fitted a new thermostatic cartridge, but it turns out on further inspection (i rent the property out so wasn't on hand to check this previously) that the problem affects all of the hot water supply. The water continuously runs from scolding hot to luke warm, including the shower with the new part :-(.

The rads still appear fine.

Any suggestions Mike?




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Re: Problem with intermittent hot water temperature with shower

Post  Mario.S on Tue Mar 04, 2014 11:49 pm

isw197 wrote:okay, an update on this issue; i was reliably informed that the problem was isolated to the shower - so i fitted a new thermostatic cartridge, but it turns out on further inspection (i rent the property out so wasn't on hand to check this previously) that the problem affects all of the hot water supply.  The water continuously runs from scolding hot to luke warm, including the shower with the new part :-(.

The rads still appear fine.

Any suggestions Mike?

Hi
The T2 reading of 85 is a T2 sensor fault (85 or ER or 99 are all errors, should read lower than T3), so just change the sensor, I would change both to avoid problems in the near future.
Regards Master Mario at Mario’s Boiler Service



 

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