"Ed Sirett" wrote in message
news
On Sun, 30 Nov 2003 09:48:54 +0000, David Hearn wrote:
Okay - 2 things...
Firstly the quickie - does anyone have a PDF (or similar) of the manual
for
the above boiler? I've no manuals or anything, and I'd find it
interesting
and useful.
Now the longer problem.
When our boiler was 'serviced' the engineer said that the thing which
connects to the boiler thermostat had siezed. I don't know its name
exactly
(I thought it was a thermocouple as that's what it looked like on our
old
but similar Baxi boiler which slipped out easily, but I'm wondering now
whether its just a temperature sensor). He said it would need to be
drilled
out should anyone need to open the boiler. Without removing it from the
heat exchanger, you can only open the front of the boiler a small way.
I thought I would see whether I could get it out last night - it just
pushes
in and pulls out. I tried pulling it in and out a little and at one
point I
noticed a 'leakage' of some liquid around the hole it went into (and was
soaked up by the material). Not very much - but it evaporated very
quickly.
Also noticed a smell of something like solvents. At this point I
stopped
doing anything!
Now this morning I noticed a banging sound from 'outside' which I now
believe to be overspill via the expansion tank. Also my wife said there
was
"a strong smell of superglue in the kitchen".
Now - I can't figure out where some solvent smelling thing could come
from
in an old boiler - unless the temperature sensor thing was actually a
tube
containing a solvent which I split by wiggling it. Result was that the
boiler's thermostat no longer works.
Is this a correct guess at what has gone wrong? Otherwise I cannot
figure
out where such solvent could come from (its not gas).
Is this an easy fix (something I can do myself if its just insert new
probe
and connect to thermostat in boiler?).
What has happen is that the thermostat has failed big time.
The consequence is that the boiler has now boiled.
The thermostat consists of a phial, capilliary tube, gubbins and a user
knob. The liquid in the phial & tube was probably alcohol, hence the
smell.
Essentially the repair job is simple as the new unit consists of new
gubbins
attached to a tube and a phial and a few electrical connections to the
gubbins.
You can get the manual from the manuafacturer. You might even be able to
find it online.
The part is likely to cost less than 25 quid (maybe much less).
Given that you are not familiar with boilers you should probably get some
help. Although with the manual you would probably do just fine.
This boiler is up for renewal but the thermostat would still be worth
replacing to get you through to the civilised part of the year for boiler
replacements.
Okay - thermostat has been removed and the bulb part has been drilled out.
I did this very carefully and everyting took me the best part of 2.5 hours.
I am SOOOOOOOOO glad I did that part myself! Okay a proper engineer may
have done it quicker - possibly taking less care - but I'm glad I've done it
now.
Next problem - sourcing a new thermostat.
The thermostat has the following markings on the bottom:
RANCO
16A 250V~
10A 380V~
T107oC
I guess its a 16A thermostat which turns off at 107 degrees C.
On one side of it it's got 102027 and the other side has G1 11685 49 75 1P.
http://www.keeptheheaton.com/acatalo...ermostats.html lists:
Baxi 102027 Thermostat K36P1324
Thermostat K36P1324 .(Please note Baxi re-numbered this part several years
ago. If the part fitted is marked K36P1324 order this part. If the part
fitted is marked CL6PO115 use 235464)
Price: £12.20 (Excluding: VAT at 17.5%)
So - if I need to ask around for the thermostat - do I ask for 102027 or
K36P1324?
Any other good sources of this part?
The other thing I wondered about was whether I could get the probe/sensor
separately. Its a sealed tube and I've removed it all, and it would be easy
to keep the 'gubbins' and just replace the tube. The same page lists:
Baxi 230204 Thermostat Sensor
Thermostat Sensor (379-030)
Price: £9.13 (Excluding: VAT at 17.5%)
Judging by the price difference (and the fact I've no idea if that sensor is
the same thing as I've no part number for that bit) - I think its probably
best to just replace it all.
Thanks for your help - you've saved me a bunch!
D