![]() The unit cools great, and no other issues, just loud weird noises in the middle of the night! Problem is the noises are loud enough to wake me up!! - Anonymous by private email 5 I've had two companies out already, one more set to come out next week, and still no answers. Only get the noise when the unit isn't blowing air. The unit can run all day and usually not make any noise, but at night will make the noise with great frequency, and the noise isn't quiet. Added a *.wav file with the noise that comes from the air handler. HONKING SOUNDS at the A/C or Heat Pump systemĮxample Recording of Rattling Clanking Noise Question: any idea what's making this noise?.GURGLING SOUNDS from the AC or refrigerant piping.GROWLING compressor sounds (also see Groaning above).GROANING sounds from A/C or heat pump system, diagnosis.FAN NOISES wobbles, motor hum, depending on speed, also ticks & clicks. ![]() CLICKING SOUNDS from air conditioner or heat pump system.CLANKS CLUNKS from air conditioner or heat pump system.CHATTERING RELAY CONTROL SWITCHES - separate article: chattering at control relays in mechanical equipment.HVAC NOISE-2 CHATTER CLANK FAN GROAN - chattering, clanks, clunks, cyclical, fan, fog horn moans and groans, growls.HVAC chattering, clanks, clunks, cyclical, fan, fog horn moans, honks, groans, growls Noise Group 2 Article Contents We also provide an ARTICLE INDEX for this topic, or you can try the page top or bottom SEARCH BOX as a quick way to find information you need. To rattling loose bolts and hardware, to costly compressor damage indicatingĪir conditioning compressor or A/C compressors at or near end of their life. This air conditioning repair article discusses theĭiagnosis and repair of air conditioning compressor noises which range in importance from normal (if annoying squeaks and squeals, How to diagnose these noises: clanks, clunks, cyclical, fan, groans, growls sounds at an air conditioner or heat pump.Īir conditioner or heat pump noise diagnosis & cure: We have no relationship with advertisers, products, or services discussed at this website. If anybody else gets the same problems it might be a good idea if they or their plumber makes the same basic checks before more expensive options are considered.InspectAPedia tolerates no conflicts of interest. ![]() That was the end of the problem and its been ok ever since (3 weeks). Gas analysis at high fire - CO2 slightly less than specified so again an adjustment was made. Gas analysis at low fire - CO2 less than specified so that was increased. Then the gas at the meter with boiler on high fire and other gas appliances on to check for pressure drop - all ok. Fearing the worst I called the plumber who just went through basic checks.įirst the flue for blockage then the gas pressure at the meter - both ok. It would also happen if the boiler was re-started and the start up cycle with the trap filling sequence (which is also accompanied with a low fire flame) is in operation. when the heating is up to temp and the burner has a small flame to keep it topped up. I had the groaning vibration problem when the boiler was on 'low fire' i.e. I suspect that I need to get someone out to see it, but I'd like to narrow it down - intermittent problems can be expensive I find!Īnyone have ideas what might be the problem? Is it major / serious? Any thoughts on repair costs? Any advice welcome! We have a few TRV's that I've fitted since moving in but most Rads are open (although some of the plumbing is questionable: e.g. It seems to be getting more frequent but that might be the weather. It occurs randomly when CH on - sometimes a few minutes apart sometimes only once or twice a night, particularly when working hard / very cold. No sign of air in the system, pressure ok and stable (always in green). I used a suitable descaler incase it was jammed up and emptied / refilled with inhibitor recently. Reminds me of my childhood in Scarborough - Fog Horns!! ![]() However, since moving in it has produced a loud intermittent groaning, vibrating, rumbling sound. We've only had one fault that was sorted by BG on a fixed fee basis - the fan inside needed replacing. Moved into this house last year with a "Worcester Bosh Greenstar HE Condensing Combi". ![]()
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