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Hi dcuk, press the button with the thermometer symbol (second from left). The led next to the radiator symbol should illuminate. The set point temperature for the heating (and hot water cylinder if only 1 switch live has been taken back to the boiler etc.) will be displayed in degrees Celsius...

Hi, does the connection into the left hand side of the shower valve remain hot all the time or does it cool down? James.

Very common that the potentiometers go on these. One symptom is that the set point temperature flashes on the display now and again when nothing is touched. A replacement potentiometer does not require the fascia PCB to be replaced. A link between the two switch lives will provide a...

I'm sure iron pipe can be used for Central Heating pipework, so can be discussed in the Plumbing and Central Heating forum. :wink: James.

When system is drained shortly before refilling, close both valves on a radiator ideally a towel rail. Add inhibitor to that rad. Refill system as said start at bottom and work up. Check for leaks. Shutdown any call for heat. Open radiator valves and bleed rad. Check and adjusted system pressure...

I wonder how much I could have had knocked off t'bill if I took t'old tyres? James.

Just had a couple of tyres changed on the van today. Who keeps the old tyres? James.

Yeah do that, then you may need to find an independant engineer anyway. Followed them on to jobs where they haven't managed to solve the problem. James

Really??? I am assuming that the GC No. of your appliance is: 41 319 63? The manual can be found online with instructions of how to change the heat exchanger. If you read the manual, it states "It is the Law that any servicing must be carried out by a competent person." If you are...

Twist end of springs with a pair of long nose pliers so that they hook into the hole where the lugs have snapped off. Can't recall having this problem with Honeywell valves. James.

+1 If someone already knows, I always think (and sometimes say), why am I asked to do the job then? James.

If there is magnetite present, it usually forms a hard crust around the pipework (as well as the loose stuff that can be flushed as described above). Cut out and clean or replace the pipework then reassemble. Set pump to speed 2 and check that it isn't pumping over again. The pumping over is...

If no water comes out when the system is full, how can it measure the pressure? Are you sure its not blocked? James

The link to the thread I was referring to in my previous post: http://www.diynot.com/forums/trade-talk/waste-carriers-license-free.387794/#2981379 James

With a highly desirable 'thanks' to 'posts' ratio like Norcon has (sarcasm), it looks like this thread has changed from talking about scrap to looking at carp (sp) posts from Norcon. I'm not from darn sarf and rarely work there but I understand how these rates can easily be justified, but...

Original gauge may be ok. James.

This not sorted yet? Isolate electrics. Remove the motor head. Check that spindle moves freely by hand only. If ok, check for safe electrical isolation and replace motor. If spindle is stiff replace entire valve (my preference is Honeywell). Re-instate and test. There is no pad that sits...

A half decent engineer will also have some spare fuses. James.