A significant share of appliance faults reported within the first month of ownership are not faults at all. They are installation problems — a machine that was never levelled, transit bolts still fitted, a drain hose at the wrong height, or an appliance squeezed into a recess with no ventilation.
Every one of these is avoidable in the first hour. This guide covers what to check on delivery and before the first cycle.
Clearances, settling times and transit bolt positions are all model-specific, and the Whirlpool instruction manual for an appliance lists them before you need them.
Transit bolts: the one that causes drama
Washing machines ship with bolts through the rear panel that lock the drum assembly for transport. If they are not removed before the first spin, the machine shakes violently, walks across the floor and makes a noise that convinces most people it is broken.
- Look at the rear panel for three to five bolts with plastic collars.
- Remove them with the supplied spanner and fit the blanking caps that came in the accessory pack.
- Keep the bolts. They are needed again if the machine is ever moved, and a machine transported without them can be damaged internally.
This applies to washing machines and washer dryers. Dryers and dishwashers do not have them, though some tumble dryers have transit packaging inside the drum.
Levelling
Levelling is not cosmetic. An unlevel appliance vibrates, closes its door badly, and in the case of a fridge can drain condensate into the wrong place.
- Use a spirit level across the top, in both directions. A phone app is adequate if you have nothing else.
- Adjust the feet until the appliance sits level and, critically, does not rock. Push each corner in turn — any movement means a foot is not carrying load.
- Lock the feet where the design has locking nuts.
- On a fridge freezer, many designs specify a slight tilt backwards so doors self-close. Check what your model requires rather than assuming dead level.
A washing machine that rocks on one corner will move during spin no matter how well balanced the load is. This is the second most common cause of the vibration complaint after transit bolts.
Clearances and ventilation
Appliances reject heat, and the specified clearances are a requirement rather than a suggestion.
- Refrigeration needs a gap behind and above for air to rise past the condenser. An appliance pushed flat against a wall runs hot, works harder and fails sooner.
- Ovens need the specified cavity dimensions and ventilation gaps, which differ between built-in and freestanding designs.
- Tumble dryers need clearance at the rear so the vent hose is not crushed, and free air at the intake.
- Dishwashers need the specified aperture height, and forcing one into a tight gap distorts the frame and stops the door sealing.
Integrated appliances have their own ventilation requirements built into the housing design, which is why an integrated unit cannot simply be installed freestanding or vice versa.
Water connections
- Check inlet hoses are hand-tight plus a light turn, with the rubber washer present. Overtightening splits the washer and causes a slow leak.
- Check the drain hose height against the specification. Too low and the machine siphons continuously; too high and the pump cannot lift the water.
- Check the hose is not pushed so far into a standpipe that it creates an airtight seal, which causes siphoning.
- On a sink trap spigot connection, confirm the blanking plug inside the spigot has been removed. A machine that has never drained since installation is almost always this.
- Run the first cycle and check every joint after five minutes, then again at the end.
Electrical
- Check the supply rating matches the appliance. Cookers, ovens and some dryers need a dedicated circuit.
- Avoid extension leads and multi-way adaptors for high-current appliances.
- Confirm the plug is accessible after installation. Being able to isolate the appliance matters for both maintenance and safety.
- Anything requiring hard wiring should be done by a qualified electrician.
Settling time for refrigeration
A fridge or freezer transported on its side needs to stand upright before being switched on, so that oil which has migrated out of the compressor can return. The required period is specified per model and is typically several hours.
Powering one up too early risks compressor damage, and the damage is not immediately obvious — it shows up as poor cooling weeks later.
After switching on, allow the appliance to reach temperature before loading it. Filling a warm fridge with a full shop is a common cause of a first-week complaint about cooling performance.
Every figure quoted here — clearance, hose height, settling time — is published per appliance, and ManualMachine holds that documentation across the brands most kitchens contain.
Before the first real cycle
- Remove all packaging, including foam blocks inside drums and cavities, protective film on stainless surfaces and any documentation taped inside.
- Run an empty hot cycle on washing machines and dishwashers to clear manufacturing residue.
- Set the water hardness on a dishwasher and fill the salt reservoir.
- Set the clock and any child lock or demo mode off. Demo mode on a display model is a recurring cause of a new appliance that appears not to work.
- Register the warranty and record the model and serial number somewhere you will find them later.
Frequently asked questions
Does an unlevel appliance really matter?
Substantially. Vibration causes noise, wear on bearings and in extreme cases movement across the floor. It is a five-minute fix that affects lifespan.
Can I install a washing machine myself?
Usually, if the plumbing connections already exist. New plumbing or any electrical work beyond plugging in should be done by a qualified trade.
What if the appliance was delivered without the accessory pack?
Contact the retailer before installing. Blanking caps, hose brackets and feet are model-specific and matter more than they look.
