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code

In communications and information processing, code is a system of rules to convert information—such as a letter, word, sound, image, or gesture—into another form, sometimes shortened or secret, for communication through a communication channel or storage in a storage medium. An early example is an invention of language, which enabled a person, through speech, to communicate what they thought, saw, heard, or felt to others. But speech limits the range of communication to the distance a voice can carry and limits the audience to those present when the speech is uttered. The invention of writing, which converted spoken language into visual symbols, extended the range of communication across space and time.
The process of encoding converts information from a source into symbols for communication or storage. Decoding is the reverse process, converting code symbols back into a form that the recipient understands, such as English or/and Spanish.
One reason for coding is to enable communication in places where ordinary plain language, spoken or written, is difficult or impossible. For example, semaphore, where the configuration of flags held by a signaler or the arms of a semaphore tower encodes parts of the message, typically individual letters, and numbers. Another person standing a great distance away can interpret the flags and reproduce the words sent.

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  1. D

    Logic Code Combi (issue?)

    Hi all First timer here - after reading a lot of the advice present I thought it would make sense to get stuck in and throw something into the ring. I am a Landlord and Agent operating new build properties in the Nottinghamshire areas, and have what seems to be an ongoing problem with one...
  2. C

    Ecotec plus boiler with VR66 gives code s97

    I have mounted a VR66 wiring centre in dual zone (switch in position 0) with two VRT350 thermostats. The heater is an Vaillant Ecotec Plus with combiboiler from october 2020. And I must say it works very well when one or both thermostats ask for heat. When there is no demand for heat the boiler...
  3. C

    Worcester CDi error code

    Hi I am new to this forum and looking for some help with an annoying issue with my Worcester CDi boiler ( installed about 2010 ). It provides heating and hot water ( through a separate lagged water tank). Over a year ago it started going into a mode for a number of minutes before it then...
  4. S

    baxi duo-tec2 fault code e385

    as above driving me insane about ten people from 27/4 rescue looked at it can not find problem,i get hot and ch but it takes a while for it to come through all the time flashing 385 then all of a suden will fire up and be fine
  5. eagleeye

    Viessmann C code after install and commissioning

    Installed a Viessmann combi on Friday and couldn't get heating working. Hot water fine but not heating. Had a letter C on the display. Reset it and it went through startup and then went to C again. Called Viessmann technical and even they didn't know what it was. Has anyone else had this and if...
  6. D

    I have a F1 fault code on my ideal boiler, the pressure is fine?

    Pressure is ok but increased to see if boiler would click into action but didn’t, have reduced back, needle is moving on pressure gauge, have tried reset but still nothing, any ideas before I call someone out? Thanks
  7. T

    How to resolve F05 error code on washing machine

    Hi there, I have an F05 error code on my hotpoint washing machine and think it related to a blockage. Would anyone know how I can go about checking to see where the blockage is? I assume I need to switch off my water from mains before I check? Thank you!
  8. D

    Reliability of fault codes potterton

    HELP!,,,, E125 error code Been trying to get to the bottom of problem with potterton titanium 40. keep getting e125 which is circulation fault ( primary circuit). Fault is intermittent. Thought about system flush but seem am reluctant as all rads are red hot. Return pipe also hot. Fault...
  9. A

    Are there any US code approved flexible waste pipes for toilets?

    Hi there, I am a college student working on a project that involves plumbing. My team and I are currently at a bit of a snag though. We need to be able to bend and move the waste pipe for our toilet but are not sure if flexible/corrugated/accordion pipes are code approved in the US. Any info on...
  10. L

    Needing some help - no plumbing knowledge

    Hi - I'm new here. I have a Glow-worm flexicom hx boiler that had a f25 error code and isn't heating my water. I have bled all the radiators, then reset the boiler and now have a f22 code. Can anyone offer advice please. Thanks.
  11. Inverness

    Intergas 30 sb fault code 11

    Hi guys, commissioned a Intergas ssyem boiler today. Work fine until later on it went to lock out code11? I know the combi Intergas boilers require to set the parameters for a combi but does this boiler need to beset for a system boiler? Nothing states in the manual about setting the...
  12. P

    KESTON C55 FAULT CODE E 02

    Keston C55 fault code E 02 and will not reset can any one help Thanks
  13. S

    Help! L9 code Ideal Boiler

    Have called out BG multiple times. DHW sensor changed, new PCB and clean of DHW heat exchanger. Have Ideal boiler and keep getting L9. It happens overnight when the boiler tries to preheat hot water and doesn’t switch off. D comes on, but no taps or open(or leaking) and boiler overheats because...
  14. I

    No hot water - boiler showing no error code

    I have an 18mth old ecoTec plus 825 Vaillant boiler. We have had intermittent problems with the hot water supply for the last 2 days - now there is no hot water whatsoever, although the boiler is showing no error code. When you run a hot tap - there is not the little flashing tap sign on the...
  15. B

    Vaillant F54 & F28 fault code help

    Anyone had any experience with F54 & F28 fault code on a Vaillant Eco tec plus 831? It locks out but if you leave it for a while, sometimes days, it fires back up. Fiddled about with the wiring harness and it seemed to sort it for a while, but not sure if that was coincidents. I'm guessing it...
  16. king of pipes

    Baxi net- tec 28 - 325 fault code ?

    Called out to this fault supposedly a low voltage problem , replaced the pcb now sorted .kop
  17. B

    22 fault code, Glow worm

    Got a Glow worm 18 flexicom with f22 fault. I've replaced both flow & return thermistors, bleed all rads of air, removed the pump and cleaned it, it all seems fine and pump is strong, checked wiring continuity and that's all good. Boiler is only 6 years old and Glow worm have said it sounds like...
  18. K

    Ferroli experts? A01 fault code

    Hi, is there any ferroli experts here? Looking for some advice on a Ferroli i29, attended a couple of times on an A01 fault code, cleaned condensate trap, hose, also connection at p trap. Tested all working when left on both occasions but the fault reoccurs in a week. Any advice would be greatly...
  19. S

    Worcester boiler not working and flashing 'EA' error code

    My Worcester Greenstar 29 CDI boiler made a loud bang earlier today, and has now stopped working. It is flashing the 'EA' error code, which according to the manual, means no flame is being detected. I tried resetting the boiler a couple of times but upon doing so, it just makes an extremely...
  20. M

    Ideal Icos HE24 LF. code

    Good morning, Our boiler has started to fail after 14 years. Given the apparent reputation of this particular model, I think it's done rather well! The current fault has become progressively worse over a few weeks. The boiler is now igniting but then shows LF. within a few minutes. As the...
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