How often should your AC compressor cycle?

[roperteacher]

I noticed that mine will cycle on for about 5-10 seconds then off for about 20 seconds, then back on... Is this normal cycling??? Trying to pin down that AC hummm noise I am getting from the condensor... thanks!

 

[betterthanstock]

I noticed that mine will cycle on for about 5-10 seconds then off for about 20 seconds, then back on... Is this normal cycling??? Trying to pin down that AC hummm noise I am getting from the condensor... thanks!

It's normal for winter defrosting, not for summer cooling.

 

[monkeyman]

Even in the summer if pressure builds it will cycle compressor. If Freon gets to low, low cut off will cycle it also.
Rick

 

[roperteacher]

I took in to the dealer for the hummm coming from the COndensor. THey said it was low ( 77Kg ) on Freon From the factory. Tech evacuated the system and recharged to spec ( Something like 800 ???). . anyway, they said the humm was gone, but it is still there. The condensor actually seems to vibrate and you can feel it in the front of the truck as well... . It blows cold cold cold air!!! So I don't want to mess with it too much. COuld it be the switch ??

 

[DrDiesel]

I took in to the dealer for the hummm coming from the COndensor. THey said it was low ( 77Kg ) on Freon From the factory. Tech evacuated the system and recharged to spec ( Something like 800 ???). . anyway, they said the humm was gone, but it is still there. The condensor actually seems to vibrate and you can feel it in the front of the truck as well... . It blows cold cold cold air!!! So I don't want to mess with it too much. COuld it be the switch ??

What`s the temp set at. Is it cycling this fast at idle even after they charged it... If the temp setting is not on cold and the outside temp is not very hot, it will cycle faster. It has a temp sensor in the dash. It basis everything off of temp through the dash sensor, system pressures and temp settings on the control head.

The vibration is for the most part normal. Run it and see how it work when the weather heats up. It`s under warranty. Don`t freak-out. Let it work.

 

[Bob4x4]

For the record it is . 850kg If you could manage to get 850kg in that system it would more than humm:-laf :-laf



Bob

 

[roperteacher]

Thanks!! I read over the mechanics notes, maybe it was 85. Kg!!! Thanks! LOLOLOo.

 

[Bob4x4]

Thanks!! I read over the mechanics notes, maybe it was 85. Kg!!! Thanks! LOLOLOo.

85. 0kg would make it 187lbs. . 850 makes it 1. 87 lbs





Bob