Motor not turning? We check brushes, capacitor and drive in Leamington Spa

When a motor-driven appliance stops turning, the instinct is to assume the motor has died. In practice the motor itself is often sound, and the fault sits in something feeding it or something it drives. Brushes wear down to nothing, start or run capacitors lose their capacitance, drive belts slacken, couplings strip their teeth and bearings seize solid. Because these failures sound and behave differently, a short sequence of tests usually identifies the culprit without dismantling the motor.

The sounds a failing motor makes

A motor that hums but does not turn is receiving power but cannot start. That typically means a failed capacitor on a capacitor-start motor, a mechanical jam downstream, or a seized bearing. A motor that is completely silent suggests no supply at all — a switch, a thermal cut-out, a fuse or a broken wire. A motor that runs slowly and gets hot points to worn brushes, a failing winding or excessive mechanical drag. A rhythmic clicking or grinding usually comes from the drive: a stripped gear, a worn belt or a foreign object in the impeller. Listening properly before opening anything saves a lot of time.

What we test, in order

Supply first: is voltage reaching the motor when the appliance is switched on? Then the control path: switches, interlocks, thermal cut-outs and any speed control module. Then the motor circuit itself: brush length and condition on universal motors, capacitor capacitance on induction motors, winding resistance and insulation to earth. Finally the mechanical side: does the shaft turn freely by hand, is the belt intact, is the coupling engaged? That sequence separates electrical from mechanical failure conclusively, which is what determines whether a repair is even possible.

Brushes, capacitors and couplings

Carbon brushes are consumable and are designed to be replaced. When they wear short, contact becomes intermittent, the motor sparks heavily and eventually stops. Brushes are inexpensive and, on many appliances, accessible with the casing open. Start capacitors are also a common and modest failure: the motor hums, cannot generate starting torque, and a replacement capacitor restores normal running. Drive couplings and belts are mechanical consumables too. None of these is a motor replacement, and all of them are worth checking before anyone quotes for a new motor.

When the motor itself has failed

A motor with an open winding, a short to earth or a seized and corroded bearing that will not release is generally beyond economic repair on a domestic small appliance. Motors are often made specifically for a model, availability is limited, and the cost of the part plus labour can exceed a new appliance. We will say so directly rather than proposing a repair that does not stack up. Where a motor is replaceable and available, we identify it and quote the part separately so you can decide.

Safety and scope

Never run a motor-driven appliance with the casing open to "see what happens" — exposed terminals and a spinning shaft are both hazardous. Unplug before any inspection, and keep water away from motor housings; wet cleaning of a motor compartment causes exactly the earth faults that trip RCDs. Microwave motors and high-voltage sections stay sealed. Gas appliance components are outside our scope entirely.

What to tell us

Describe the sound and behaviour precisely: silent, humming, slow, sparking, grinding, or cutting out after a few minutes. Note whether it happens on all settings or only under load, and whether the appliance smells hot. Bring any removable parts — jug, blade assembly, floor head, hose — so the drive can be checked assembled.

Booking

Book online with the make, model and symptom. The booking fee is paid when you book, and the hourly labour rate depends on how soon you need the visit. The full cost is quoted and approved before work starts, and parts are identified and quoted separately after diagnosis.