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electronic

Electronic warfare (EW) is any action involving the use of the electromagnetic spectrum (EM spectrum) or directed energy to control the spectrum, attack an enemy, or impede enemy assaults. The purpose of electronic warfare is to deny the opponent the advantage of—and ensure friendly unimpeded access to—the EM spectrum. EW can be applied from air, sea, land, and/or space by manned and unmanned systems, and can target communication, radar, or other military and civilian assets.

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  1. M

    New boiler parts for sale x4 fan heaters £10 each x6 pump valves 22mm £3 each x1 hone

    X4 FAN HEATERS X6 PUMP VALVES 22MM X1 HONEYWELL ST699 24 HR PROGRAMMER X2 HONEYWELL L641 CYLINDER STAT X2 SELECT 107XL TIMESWITCH X1 DRAYTON LIFESTYLE ELECTRONIC PROGRAMMER X3 DRAYTON ROOM STAT X3 HONEYWELL CYLINDER THERMOSTAT X5 3 WAY VALVES X1 22MM MID POSITION VALVE DRAYTON X1 ONE...
    • manmade
    • Thread
    • 22mm boiler cylinder drayton electronic fan for sale heaters new boiler oil parts potterton price pump sale st699 valves
    • Replies: 0
    • Forum: Plumbing Jobs | The Job-board
  2. T

    calibration

    Hi All, I have a digital manometer which needs calibrating,anyone know of a local firm to me {merseyside ] that carries out this work? I cant seem to find a firm that are willing to do it because its only 1 item. Regards, Tegsy
  3. M

    purging info

    Hi guys, i have just read a book today which suggests that you do not need to do any calculations on domestic systems when purging. You just purge 0.035 m3. Is this correct? Cheers
    • mutley racers
    • Thread
    • 28mm air cooker electronic error flame gas hose installation newbie nvq parts pipe pipe size pipes problem purge purging safe safety smell system technology van
    • Replies: 13
    • Forum: Plumbing Jobs | The Job-board
  4. M

    worcester 28i junior

    Going to above boiler later this evening for a friend the boiler is not working in ch mode but fine in hw. If everything is calling for heat am i right in thinking diverter valve is the problem and if so how do i prove the fault before replacing the part because im not sure which type of...
    • mikegas
    • Thread
    • board boiler central heating system condensing control diaphragm diverter diverter valve diverter valves electronic flow jobs junior plug plumbing problem supply switch timer valve valves water worcester
    • Replies: 21
    • Forum: Plumbing Jobs | The Job-board
  5. W

    hob igition

    got to look at a hob we fitted last year 4 burner,zanussi,away tennent says the igition constantly sparking,they have unplugged,anything anyone can suggest,i personnally think water been spilled,would back heel this but its a national estate agent,who happens to be our biggist customer.
  6. F

    Calling all other regesterd heating engineers

    I am wondering if anyone knows of another website that gives a detailed breakdown diagram of boilers and spares like on Interpart, I need Worcester and interpart does not cover Worcester. I know you can get software you pay for but before I go ahead and pay for something I can get for free can...
    • F_P_H
    • Thread
    • appliance boilers calling cooker electronic engineer engineers free gas heating installers job mobile other parts plug software supply vaillant web website worcester
    • Replies: 4
    • Forum: Plumbing Jobs | The Job-board
  7. W

    Limescale problems

    Something which I don't have a lot of experience in - our water is very soft here. However I have been dealing with a system which has been very badly scaled up from a private water supply. The main problem was water not heating up quickly and I found that the cylinder was scaled. It took...
    • WHPES
    • Thread
    • boiler central heating system cold control copper cylinder electronic flow gledhill hose hot hot water inside job limescale pipe pipes problem problems supply supply pipe system taps water
    • Replies: 9
    • Forum: Plumbing Jobs | The Job-board
  8. A

    u-gauge

    anyone got any recomendations on wich u-gauge to buy. got a price of £12 for a 30mb rothernberger one from the good bloke at pts. but just wonderd what you guys used. answers on a postcard please:)
  9. H

    Hello 2 everyone!!

    Just like to say a big hello to everyone on this great forum. What a find!! i must say when googling . I have been reading the forums for the past week as a guest and i was so overwhelmed by the information members shared to help one another i wanted to join :) I am 35 years old and i have been...
    • hunter2k
    • Thread
    • baxi boiler bpec central central heating system combi condensing diy electronic everyone free gas gas safe hello industry pipe plumbers plumbing software system vaillant work
    • Replies: 5
    • Forum: Plumbing Jobs | The Job-board
  10. L

    Electronic Token Meters

    Does anyone know how you can gas rate an appliance if an ETM (Landis & Gyr METLG210 ultrasonic type) is fitted? It appears to have no units display only credit display as it's a prepayment type meter, any help would be appreciated thanks. See here: Page 13...
    • LIFES A GAS
    • Thread
    • appliance button electronic flow gas gas safe iphone meters paperwork safe tapatalk website
    • Replies: 10
    • Forum: Plumbing Jobs | The Job-board
  11. B

    What have you done today at work?.

    I removed this 280 Worcester bosch, and replaced it with this Viessmann Vitodens 200 series 35kw combi boiler, ugly but a very very special piece of Germanic engineering.
    • Blackcatgas
    • Thread
    • boiler branch building central heating system cold combi combi boiler convert electronic flow hot install jobs leak level mixers open vented pipe school sealed system temperature today trv waste worcester work
    • Replies: 7
    • Forum: Plumbing Jobs | The Job-board
  12. J

    Vallant Boiler ecoTEC plus 618

    Hi all Hope you can advice me on what to do next. I have had this boiler for 15 months and we are getting the code f28 meaning the boiler is not igniting. I have carried out a diagnostic test from the manual but ignition problems appear to be on the level 2 diagnostic test which I cannot...
    • jube
    • Thread
    • bar boiler boilers central heating system code control eco ecotec ecotec plus electronic gas gas fire head manual oil plus pressure problem reset screw smell supply test vaillant valve work
    • Replies: 14
    • Forum: Plumbing Jobs | The Job-board
  13. J

    Ariston Unvented HW Cylinders

    Why do these in particular, c/p Megaflows et al, seem so prone to corrosion on flanges....and with the casing and insulation they all virtually impregnable so attempting to work on them is a nightmare......overhauls seem impossible......or perhaps its not corrossion but a sustained 'weeping' but...
    • JohnC03
    • Thread
    • ariston cylinder cylinders eco electric electronic error heater hot hot water immersion heater insulation insurance no hot water pipe plumber plumbers pressure tank unvented valve waste water work
    • Replies: 5
    • Forum: Plumbing Jobs | The Job-board
  14. S

    Replacement for Combimate

    Because the water in my area is quite hard,I currently have a Combimate fitted. Since it was fitted 6 years ago, I keep having promlems with mould forming inside my washing machine. Because has only happened since the Combimate was fitted, I suspect it has something to do with the chemical which...
  15. J

    compartment labels

    hey guys struggling to get compartment labels for combi boilers installed in a cupboard and labeling to tell the name of installer date ect any help please been on corgi direct & gas safe with no joy cheers
    • jambo
    • Thread
    • boilers combi compartment corgi electronic funny gas gas safe labels safe
    • Replies: 4
    • Forum: Plumbing Jobs | The Job-board
  16. R

    New Government, what would we like to see change?

    Assuming we get a new government, what changes do you think they could implement to revitalise our industry.... and what do you think we can do to help ourselves? I have asked this question before, please dont just rant about 'how they are all as bad as each other', that's not the question -...
    • Renewable M
    • Thread
    • boilers central central heating change cheap cold costs electric electronic gas government green heating hot industry installation insulation mcs new guy oil plumbers power problem public question scrappage scheme tee
    • Replies: 22
    • Forum: Plumbing Jobs | The Job-board
  17. Q

    Drayton LP722 7 Day Electronic Programmer Shutting off

    I have a Glow Worm boiler in my loft, and the above mentioned thermostat that controls when the heating and hot water come on. The thermostat control is in the airing cupboard on our landing, with the thermostat itself on the landing. Over the past few weeks we've had a number of incidents...
    • qprfact
    • Thread
    • boiler central heating system connections drayton electronic glow worm hot hot water loft parts power programmer remove screw switch wall warning water
    • Replies: 3
    • Forum: Plumbing Jobs | The Job-board
  18. B

    Cold Feed Getting Hot

    I have an open vented CH system. I've just had a new boiler, pump, electronic controls & room stat fitted. It's not been the best experience I've had. Now the work is complete, I've noticed that the 15mm piped cold feed into the CH system gets hot from time to time. Not sure how high up...
    • burnssj
    • Thread
    • boiler central heating system check valve circulation cold cold feed electronic expansion flow getting high hot hot water loft open vented pipe problem pump radiator system tank valve water work
    • Replies: 6
    • Forum: Plumbing Jobs | The Job-board
  19. A

    Descaling my heat exchanger

    Hi everyone, I had my boiler engineer out last year as our hot water decided to stop working. After trying a few bits, he decided it was the heat exchanger that was faulty on my combi boiler. Replaced it with a brand new one and hey presto, it all worked fine again. Hot water Pressure is...
    • andycharger
    • Thread
    • boiler combi electronic exchanger flushing gas heat heat exchanger hot hot water job loft magnetite mains pipes plumbing pressure pump remove shower supply trade valves water water mains work
    • Replies: 5
    • Forum: Plumbing Jobs | The Job-board
  20. N

    Potterton Netaheat Electronic

    The problem: 23 yr old boiler. Seems to work fine, heats to temp and the boiler shuts off as it is meant to. When the boiler trys to re-ignite it fails and seems to "tick". It will re-ignite with a good whack though. Have been told possible carbon deposits on the earth electrode but would...
    • nysk2008
    • Thread
    • boiler boilers electronic netaheat potterton pressure problem replacement seal work
    • Replies: 4
    • Forum: Plumbing Jobs | The Job-board
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