Questions & Answers for: knocking heating unit

...unit is knocking and blowing cold air, your compressor is having problems in heat mode, could be reversing valve. A tech is needed in your situation. Getting the prob fixed right away will save you ...

...knocking noise When unit goes into defrost the compressor sounds like liquid going back into compressor . Makes very loud knocking noise. Has scroll compressor with 410A freon.Does find except when ...

...knocking noise that can be felt if touching the unit. The unit starts up and operates properly for a period of time and then starts making periodic very loud knocking noise. It sounds like someone is ...

Knocking for about 2mins. then slowly disappears. I checked the fans and they are clear and not hitting anything. Any ideas? My unit is about 8yrs old. Might be the compressor. It would be a good idea

...knocking sound comingfrom my wall whenever my a/c is on. The a/c is a ground unit outside in the backyard and the wall is upstairs not near the a/c. It's just a weird knocking sound like someone is ...

i have a carrier hrv model va3bab015000 and i am getting a knocking noise when unit is running The blower wheel is either very dirty or just out of balance. The unit probably needs a very good ...

...knocking noise while it is heating the water? low water flow check manual bypass in heat exchange if spring broke letting too much water bypass and overheating water in unit also see if pump ok and ...

...unit will run well and then will make a hard continuous knocking sound. the first time it stopped by itself but went on for a few hours. This morning it happened, i went outside too check the unit. ...

...unit is getting power, but neither element is heating. I recently cleaned the oven and may have knocked something loose on the elements when I cleaned around them. I'd like to remove the ...

Knocking stopped but unit runs aprox 10 mins stops running for around 5 seconds and then starts right back up for another 10 or so minutes and continues this cycle. Cannot see the video but sound like