The setup decisions you only get to make once

This works through installation decisions and their consequences in the order the parts actually depend on each other.

Levelling is a durability measure

Any machine with a rotating mass transmits vibration into whatever it stands on, and an unlevel machine transmits far more of it. Vibration loads bearings, suspension components and cabinet joints continuously, so a poorly levelled machine ages every time it runs.

Adjustable feet exist for this reason and are frequently left at the factory setting because the machine appears to work. A spirit level and ten minutes at installation is one of the highest-value maintenance actions available across many categories. Floors are rarely flat, and rechecking after a machine has settled for a few weeks is worth the small effort.

Clearance and ventilation

Manuals specify minimum clearances because heat has to leave, and enclosed installation raises internal temperatures measurably. Refrigeration equipment is particularly sensitive, since a condenser starved of airflow works harder and runs hotter continuously. Electronics in cabinets suffer the same way, and the effect on component life is cumulative rather than immediate.

Clearance also determines whether a machine can be serviced without being dragged out, which affects whether it ever is. These figures are in the manual and are among the specifications most commonly ignored at installation.

Transit protection and first-use steps

Many appliances ship with transit bolts, foam blocks or cable ties that must be removed before the first cycle. Running a machine with transit bolts in place can damage the suspension immediately and is a common and expensive mistake.

The measurable part is this: some products require a settling period after transport, particularly refrigeration equipment that has been laid on its side. Initial cycles are sometimes specified to flush manufacturing residues, and skipping them affects the first use rather than the machine. Keeping the transit fittings is worthwhile, since they are needed again if the machine is ever moved.

Connections and supply conditions

Water pressure, supply voltage, gas pressure and network conditions all have specified ranges, and equipment outside them behaves oddly. Inlet filters on water-fed appliances catch debris and need checking at installation, particularly in older plumbing. Hoses and cables have minimum bend radii, and forcing a machine tight against a wall crushes them.

Isolation valves and accessible sockets make future service possible and are worth arranging while access is easy.

Recording the supply conditions at installation gives a baseline if performance changes later.

Initial configuration

Default settings are chosen for showroom impressions and universal compatibility rather than for your particular use. Calibration, where offered, is worth doing at installation while the process is fresh and the manual is open.

Recording custom settings somewhere outside the device protects you when a reset or a repair clears them. Where a device offers a local control mode as well as a connected one, configuring the local mode at setup is prudent. Setting sensible defaults for the household, rather than for the person who installed it, reduces the chance of misuse.

Where a claim here has not been tested directly it is inference, and it should be read as inference.

Documenting the installation

Photograph the installed machine, its rating plate, its serial number and its connections before covering anything up. Record the installation date, the installer and the supply conditions in the same place as the receipt. Note the clearance you achieved, since a later fault may relate to it and you will not remember.

On the bench, register the product if the warranty requires it, and diarise any servicing requirement it imposes. This site does not install products, and anything involving gas, mains water or fixed wiring should be done by a qualified person.

The takeaway

Spend an hour on the installation, because most of those decisions will still be in place when the machine dies.

Buy for the failure you can live with, not the feature you will use twice.