Search the forum,

fault

In geology, a fault is a planar fracture or discontinuity in a volume of rock across which there has been significant displacement as a result of rock-mass movements. Large faults within Earth's crust result from the action of plate tectonic forces, with the largest forming the boundaries between the plates, such as subduction zones or transform faults. Energy release associated with rapid movement on active faults is the cause of most earthquakes. Faults may also displace slowly, by aseismic creep.A fault plane is the plane that represents the fracture surface of a fault. A fault trace or fault line is a place where the fault can be seen or mapped on the surface. A fault trace is also the line commonly plotted on geologic maps to represent a fault.A fault zone is a cluster of parallel faults. However, the term is also used for the zone of crushed rock along a single fault. Prolonged motion along closely spaced faults can blur the distinction, as the rock between the faults is converted to fault-bound lenses of rock and then progressively crushed.

View More On Wikipedia.org
  1. D

    F75 fault with Vaillant when pressure is okay

    Can someone help me understand what could be causing this fault? It only seems to happen when the pressure in the boiler drops below around 1.5 - 1.7 bars otherwise it works fine. The boiler is a Valiant Eco fit pure 835 and the building is a 3 storey house with 10 radiators. Thanks
  2. N

    Honeywell ST699 switching fault

    Honetwell St699, will switch on in once mode at desired time but won't switch off at desired time will just continue, any ideas would help greatly
  3. D

    URGENT duo-tec 28 fault code e168 new PCB

    Duo-tec 28 fault code e168 PCB replaced PCB turned boiler on same fault code e168 could it be a faulty new PCB or am I missing something
  4. B

    New Grundfos UPS3 15-50/65 130 Circulator pump fitted no heating and hot water - FD Fault code

    I have a 5 year old Ideal Logic 15 boiler that has been working alongside an old Grundfos pump possibly about 10years old. The boiler was recently (about 3 weeks ago) repaired and services by an Ideal technician. I had a plumber yesterday from Local Heros who came to fit a new Grundfos UPS3...
  5. T

    My double flush toilet has developed a fault. It won't stop filling eve when I pull the float arm right up. I have replaced the inlet valve diaphragm

    My double flush toilet has developed a fault. It won't stop filling eve when I pull the float arm right up. I have replaced the inlet valve diaphragm but this has made no difference What else can i try?
  6. L

    Vaillant ecotec 831 F61 fault

    Just wondered if anybody could help me with this one....... or advise... Called out to an ecotec 831. fault code F61. The gas valve had been changed by a third party a week before... I checked the ignition electrodes and they were caked in sh*t. Cleaned and fired back up. Advised...
  7. L

    URGENT Boiler fault F 20

    Hi everyone, I have problem with my boiler HEAT LINE CAPRIZ PLUS 28 I have error code on screen F 20 In manual instructions is F 20 : Overheating fault , Overheating safety device activated (97°C) What I should to do ? Lukas, Hemel Hempstead
  8. J

    URGENT Santon PremierPlus unvented boiler - super high bills

    Disclaimer: I know very little about boilers so sorry if my assumptions are way off! From testing by logging energy usage, and that if I turn the boiler on the meter lights up like a Christmas tree, it seems our Santon PremierPlus boiler (PP170E) is constantly running causing extreme energy...
  9. B

    Combination valve fault issue low pressure

    Have a combination valve with 6.5bar incoming pressure. The valve would have been set at 3 bar presumably, but the property is having lower than normal water pressure from the outlets and operating a second outlet dramatically affects the first outlet. Once the issue was noticed the static...
  10. P

    Keston C55 Fault code E36

    Hi Guys, I have been called out to a Keston C55 boiler that had a E36 Fault code, changer the flow and return thermistor but still getting E36 code? have checked all connections and wires. Any ideas. Thanks
  11. M

    Running boiler flu on top of kitchen cupboards

    My daughter is having a kitchen extension and the boiler is going to be fitted on an inside wall with the flu running around 20 feet along the top of her new kitchen cupboards and out the wall. I think it’s a normal combi boiler (maybe Valiant). Is this normal and are there any safety...
  12. gingalig

    Gloworm 30cxi, f1 fault

    Hi all, I attended a gloworm 30cxi running on lpg today. Changed the return pipe on the heat exchanger as the rubber connector had gone hard and was leaking all over the place. Boiler fired up ran for 20 secs on dhw then fan increased speed and it went out. Went through the ignition sequence a...
  13. N

    URGENT Vaillant F23 fault Christchurch, Dorset

    My boiler has tripped out showing F23, British Gas came out two weeks ago cleaned out the pump and it worked but now has tripped out again. I need someone who can give the system a power flush. It is an open system with a hot water tank. Many Thanks in Christchurch BH23 4ER
  14. H

    Called out to fault on Alpha HE 33. New Fan Installed.

    Hi guys. First post on here. Called out to fault on Alpha HE 33. Fast blow fuse found to have blown. Faulty fan found to be problem. New fan installed and tested. Four days later and a call from customer to say boiler not working again. fast blow fuse found to have gone again. Replaced and gone...
  15. S

    10 year old Bosch Greenstar Junior water sloshing noise, then fault

    I noticed the boiler making some strange noises last night. It made the same noise previously during a severe winter several years ago when the condensate exhaust which runs into a sink waste outside froze. I checked the brass spiral filter and purged it and quite a lot of brown debris powder...
  16. J

    Intermittent CH Fault - advise please...

    I’d be grateful for your thoughts please... We have an Ideal Classic NF50 Boiler with a Lifestyle Model LP522 programmer, a Drayton Digistat 1 Roomstat controlling Hot Water & Central Heating connected to a Drayton MA1 Mid Position Actuator. We had a problem a month or so ago whereby the...
  17. M

    johnson starley reno he30c e5 fault

    Anybody suffered the pleasure of working on these 😔 Mates boiler who desperately wants to keep it going ... called out to e5 boiler fired twice for 10 seconds then locked out. E5 in book points to pump and managed to stop propeller with screwdriver so swapped it. Reset boiler now only getting...
  18. B

    F1 fault on Ideal booker

    Hi I have a seven year old “Ideal Logic combi 35” Lately it’s been showing an F1 fault every 2/3 days and I’ve had to top the system upI’ve looked all over for signs of a leak and I’ve tried (as someone suggested) placing a balloon on the overflow outside and this hasn’t filled just wondering if...
  19. U

    Icos He30 combi boiler resolution L9/H9 fault codes

    My boiler is an Ideal Icos HE30 boiler. This supplies the central heating and a separate heat store - in other words a big cylinder - for domestic hot water. It is not a combi boiler. The boiler is 10 years old and it has been serviced by the original installer each year since installation. It...
  20. D

    Glowworm 18HXi Reporting Error F13 (PCB Fault)

    Hi All, Problem with a GW 18HXi reporting error F13 (PCB Fault). I've replaced all the electrolytic capacitors on the PCB, many bulging with high ESR. After reassembly the fault remains. Swapped board with a known good one and the fault remains. Any ideas?
Creating content since 2001. Untold Media.

OFFICIAL SPONSORS

OFFICIAL SPONSORS

Back
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

I've Disabled AdBlock