Gledhill Repairs
Would you like to react to this message? Create an account in a few clicks or log in to continue.

Boilermate 2000 PHE Pump Switching on/off 50/55 instead of 70/75

2 posters

Go down

Boilermate 2000 PHE Pump Switching on/off 50/55 instead of 70/75 Empty Boilermate 2000 PHE Pump Switching on/off 50/55 instead of 70/75

Post  Bernie Sun Jan 22, 2012 2:10 pm

Hi,

Apologies if this has been answered before...tried looking for similar.

My Boilermate 2000 PHE_T2 Sensor suggests that the Heat Exchanger Pump should switch on/off at 70/75 degrees.
However, for a while now the hot-water supply has been much cooler than normal and inconsistent. By running the hot water and using the ACB to check the sensor temps, I can see that the PHE pump is actually kicking in at 50 and off at 55 degrees, consistently. The result is the hot water supply(sensor DHW_T3) fluctates between 40 and 45%, in sync with the pump switching on/off.

Is that likely to be a sensor issue or something on the ACB, as the temperature readings are presumably correct.

Regards,
Bernie


Bernie

Posts : 3
Join date : 2010-04-14

Back to top Go down

Boilermate 2000 PHE Pump Switching on/off 50/55 instead of 70/75 Empty Re: Boilermate 2000 PHE Pump Switching on/off 50/55 instead of 70/75

Post  Midland Boilercare Mon Jan 23, 2012 2:51 am

Hi Bernie

This sounds very much like a hot water sensor that is failing (part number GT153) and will need replacing.
Midland Boilercare
Midland Boilercare

Posts : 159
Join date : 2009-07-15

http://www.midlandboilercare.co.uk

Back to top Go down

Boilermate 2000 PHE Pump Switching on/off 50/55 instead of 70/75 Empty If Sensor broken, why would the sensor display still show 50/55, presumably accurate readings?

Post  Bernie Wed Jan 25, 2012 1:20 pm

Hi, Thanks for the prompt reply. I will take your advice and replace the sensor. I just have one nagging thought which may just be my ignorance of such things: if the sensor is just there to indicate temperature and the temp display for that sensor is showing between 50 (when pump actually starts) and 55 (when pump actually stops), why would the system prompt on/off at these temperatures when the values displayed as being set on the system for when this should happen are still showing as 70/75? I cannot understand why a broken sensor would cause the switching on/off to be at wrong but consistent temperatures, different to those settings on the system. Does the sensor do something more than just indicate temperature to the system?

Bernie

Posts : 3
Join date : 2010-04-14

Back to top Go down

Boilermate 2000 PHE Pump Switching on/off 50/55 instead of 70/75 Empty Re: Boilermate 2000 PHE Pump Switching on/off 50/55 instead of 70/75

Post  Sponsored content


Sponsored content


Back to top Go down

Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum