Rattling is a common noise with air conditioners as the various fasteners throughout the machine can eventually come loose.
The roof alarm is making a noice.
As the lumber expands it moves and it will rub against other pieces of wood that aren t moving at the same rate.
If you hear rattling start by checking the screws or bolts holding any.
If that doesn t end the sound replace the dimmer.
When you open the roof keep holding the button for about a further 10 20 seconds you will hear a slight motor whir at the end of this the roof is completely locked open.
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This movement creates the popping noise.
The sun hits your roof and heats it up.
Department of energy suggests placing shims under one side of the radiator to tilt the excess water back toward the pipe or steam trap.
First make sure the radiator inlet valve is fully open as a partial opening could result in some noise.
If the sound continues the u s.
Roof noises may be described as those attributed to an obvious source.
The patter or even the roar of falling rain or hail popping and cracking noises perhaps due to thermal expansion and contraction of roof coverings metal roofing or roof structure and transmitted noises from other external sources such as low flying aircraft or nearby trains or auto truck traffic from a nearby highway.
The beeping alarm is to warn that the roof is not fully open and locked.