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CONFIG.SYS is the primary configuration file for the DOS and OS/2 operating systems. It is a special ASCII text file that contains user-accessible setup or configuration directives evaluated by the operating system's DOS BIOS (typically residing in IBMBIO.COM or IO.SYS) during boot. CONFIG.SYS was introduced with DOS 2.0.

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  1. John Donnelly

    Baxi Megaflo no display

    I noticed a few weeks ago that my hot water and heating were not working so I went to check the boiler expecting to see an error code, but on checking, the display was completely off. I could hear the fan running (quite loudly) so I knew there was power going to the boiler. I opened up the...
  2. B

    ideal esprit 2 30 no display UP DATE

    so no display purchased a new one that didn't work either sent it back, so I did some more research and thought what about the pcb the orange one, was in process of getting one when the the other day had the heat on it went off, dead phoned insurance they out engineer pcb was dead one day later...
  3. B

    ideal esprit esprit 2 30 no display

    HI i have a esprit elite 2 30 no display. before I would turn power off then it would come back on after a countdown, no nothing have heat and hot water, have tried another Display but same thing changed the lead as the outer cable was very stiff form the heat and wires had a kink. not sure if...
  4. N

    British Gas 330+ display lights up, but otherwise blank

    Hi people, I have came across a British Gas 330+ system boiler. No heating or hot water. Cant hear anything when turning power on, just display lights up with no info on it. Does anyone know what the issue might be?
  5. W

    Salus st625tx display problem

    Salus st625tx display flashes not displaying anything but a couple of heavy dashes
  6. I

    Main 30 Combi Eco Elite display temperature

    Hi, I have the above boiler and had a user question about the display temperature on the front of the boiler. I can't seem to find the answer in any manuals. I wanted to know what the temperature that is displayed relates to ie the boiler temperature or the water temperature. Reason for...
  7. P

    Baxi Duo Tec Combi HE error display light is not working/blank

    Hello All My Baxi Duo Tec Combi HE error display light is not 'lit up' - it appears to be blank. My boiler hasn't worked since the weekend so I checked the boiler panel expecting to see an error E119 low pressure message which I can normally fix myself. The error message display panel appears to...
  8. M

    Thermostat no display

    Sorry if I seem like a novelist as I am but just seeking a little advice as I went to turn on my heat 2 days ago and noticed I had no display on my thermostat but my heat was turning on. So after checking the breaker, the batteries, making sure the door on the heater was on correctly and...
  9. A

    URGENT No LED display on honeywell cm921 batteries all replaced & Checked. Ant thoughts pls

    No LED information on a Honeywell cm921. Batteries all changed & checked, any ideas pls. Can they be repaired or is it a new one required
  10. B

    Boiler Greenstar 30CDi return pipe cool but display says 70 - 80 degrees.

    Vented system, Worcester Bosch 30CDi, NEST control. Radiators not getting hot, or takes hours. Wanted to ask if below is a good indicator of a technical problem, rather than looking for blockages etc etc. The boiler is cycling from 45 degrees, climbing quickly (a degree a second) to 50 where it...
  11. F

    new pump display is wrong way up

    hello joined today names ali been a refrigeration engineer for 30 odd years now , i need the help of the plumbers / heating engineers on here please . i have purchased a new grundfos alpha 1 pump the one with the digital fascia , and was wondering if anyone on here knows if it can be...
  12. S

    Valliant ecotec 637 no water sign on display and radiator flashing

    Hi. i have new installed valliant ecotec 637. The tap button is not showing on the display and the radiator is flashing on the screen. I can press the right button and change all the radiator settings but I am unable to access any of the tap settings as there is nothing on display. Please help!
  13. H

    Drayton Digistat 1 Room Thermostat loses display

    I have a Drayton Digistat 1 Room Thermostat which ran out of Battery. I replaced with a new set and it ran out within a month. I've now replaced with another new set of Alkaline Batteries (GP Ultra) and it again ran out within minutes. Is there a short somewhere which is draining the Batteries...
  14. Darren Jackson

    Gas meter display blank

    Come to service a boiler, fire & gas hob, but the battery in the E6 meter display appears to be dead or the thing is broken. So there is no way I can gas rate the appliances! What would you guy's do? The home owner has just moved in and says she has been in touch with BG as she can not take a...
  15. A

    Vaillant boiler, no error on display but not working properly

    On unvented system. Not sure what model boiler. (not helpful I know) A tenant where I do some work has been in touch, he said the boiler was not working. I asked him to check the usual, thermostat turned up, gas on (light the hob). Can't check the pressure because it means taking the case off...
  16. A

    Icos no display, not working

    Hi everyone I went to a job this morning for a plumbing repair and the customer said can I have a look at the boiler too. Its an icos (2nd this week). The boiler is not working, nothing on display. It has power to it. Fuse is OK. Do I go with just the pcb or pcb and user display? Thanks
  17. G

    Glowworm 24ci , no display on interface board

    Hi , I have a glowworm 24ci and recently the lcd starting flickering between temp and pressure green led also flickering , now there's no display or led at all, had an engineer to look and he spoke to glowworm over phone and diagnosed the fault to be the interface board , £160 later and new...
  18. M

    Honeywell CM927 display issue

    Hi, Does anyone have any ideas regarding whether this is a complete failure of the display? Batteries changed this evening. Long overdue. I've read about display cells failing but this is a case of every single one being ON. Help please
  19. N

    Baxi megaflop compact 2 display dead

    Hi, I woke this morning to find my heating not on. I checked the boiler and the display is completely off but the pump sounds like it’s running. I’ve switched it off at the mains for 10 or so minutes and tried again and it’s still the same. I am a white goods engineer and have similar faults...
  20. A

    Baxi Duo-Tec 24GA - Fan only on, no display when switched on at mains

    Having issues with the boiler making a arcket when hot water/heating running, sounds like combustion needs resetting as it runs perfectly for 10 minutes then error E comes up and flame symbol. Boiler restarts and runs perfectly again until next time which could be never or 30 minutes Service...
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