humming

  1. R

    Loud droning from new Vaillant system boiler

    We had a new Vaillant EcoTec Plus 612 system boiler installed in February. Occasionally, about once per week, we have experienced a very loud droning resonance in the pipework. This is savage enough to be heard through the house and felt on the pipes and boiler casing. It appears to be caused...
  2. C

    Plumber tells me diverter valve needs changing? Weird humming from boiler when rads turned down

    Hi all, Been having a strange whining/humming noise coming from my boiler. (Combi boiler - Ferroli i25). When the system is on and all radiators are on full heat it works perfectly, however when one is turned down the boiler makes a fairly loud vibrating/whining/straining noise, and when that...
  3. F

    VAILLANT EcoTEC plus 831 sounds like a helicopter landing

    Just had my boiler serviced, two hours after the engineer left, the boiler suddenly started making a very very loud humming/buzzing noise. The vibration went through the house and through me. It sounded like a truck was about to come in the patio doors. The experience lasted 2 minutes and then...
  4. L

    VW Polo '06 1.2 Humming noise from engine! **VIDEO INCLUDED**

    Hi Everyone! Hope someone on here can help.... I've had this high pitch humming/whistling noise coming from my engine. It happens when I accelerate at a certain point usually heard in the first 3 gears. (noise still is heard when pressing the clutch in) it is also heavily noticeable after...
  5. L

    Humming from ideal icos fan

    Have an ideal icos boiler. When its been on for 10 mins or there abouts. It begins to hum quite loud as you can hear it from other rooms. After its hum for 10 to 20 mins it goes quiet again. Thinking its the fan? Is it dangerous to run like this? And is there an easier fix than replacing the...
  6. L

    Humming from ideal icos fan

    Have an ideal icos boiler. When its been on for 10 mins or there abouts. It begins to hum quite loud as you can hear it from other rooms. After its hum for 10 to 20 mins it goes quiet again. Thinking its the fan? Is it dangerous to run like this? And is there an easier fix than replacing the...
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