You've got two or three TVs in the house. One says "no signal" or pixelates constantly. Another works fine on the same channels. It's a confusing fault to diagnose because your first instinct is that Freeview must be broadcasting normally — otherwise all the TVs would fail together. That instinct is right, and it's the most useful clue we have.
Here's how a local engineer works through it, and what you can safely check yourself before booking a call-out.
The signal is fine — the delivery isn't
When one TV works and another doesn't, the broadcast signal is arriving at your property. The fault has to be somewhere between the aerial and the TV that isn't working. That's a smaller problem than "the whole aerial is broken", which is good news for the repair cost.
The most likely causes, in order
1. The wall socket or cable on the affected TV
This accounts for a large share of the calls we go out to. A loose F-connector at the back of the wall plate, a coax cable pulled by a vacuum cleaner or bed frame, or corrosion at the outlet all cause exactly this pattern — one dead TV, the rest fine.
2. A tired splitter or distribution amplifier
If your aerial feeds multiple rooms, there's a splitter or an amplifier somewhere — usually in the loft. Splitter outputs fail one at a time. The room fed by the failing port loses signal while the others keep working. Amplifiers with a dry solder joint behave the same way. If picture is breaking up rather than absent, our guide on pixelation covers the amplifier symptoms in detail.
3. Bad joints in the run
Old installations sometimes have a joint hidden inside a wall or under floorboards. Water, oxidation or a bad crimp introduces signal loss that only affects that leg of the run.
4. The TV itself
Less common, but tuners in modern TVs do fail. The tell is that the same wall socket works fine when a different television is plugged in.
5. Cheap fly leads and adaptors
The short coax fly lead between the wall plate and the TV is often the weakest link. Bent connectors, screw-on adaptors and unshielded leads from the pound shop all drop signal significantly. Swapping the fly lead is a five-minute test.
Safe checks you can do first
- Swap the fly lead for a known-good one — ideally from the TV that works.
- Move the working TV to the dead socket. If it still works, the socket and cable are fine; the fault is the original TV or its fly lead. If it now also fails, the socket or wiring is the fault.
- Retune the affected TV after any change.
- Check for kinked or trapped cable — behind furniture, under skirting, at the wall plate.
- Do not open the wall plate if you're not comfortable with it, and don't go into the loft to poke at splitters unless the aerial is isolated.
Why guessing at parts usually costs more
We get called out fairly often to homes where someone has bought a new splitter, a new booster and a new aerial cable — and the fault is a corroded wall plate that costs pennies. A proper signal test at each outlet tells you which leg of the run is failing in a few minutes, before anyone spends money on parts. If the aerial itself is old and marginal, we'll say so — our guide on repair vs replace is honest about when each makes sense.
When to call an engineer
Call an engineer if swapping the fly lead and retuning hasn't fixed it, if the fault covers multiple rooms fed from the same amplifier, or if you suspect the wiring runs through walls or the loft. It's a straightforward test-and-fix job for someone with a signal meter.
How we approach it
Evolution Data & Digital is a local, engineer-led aerial and TV distribution business — no call centres, no franchise scripts. We cover Stockport, South Manchester, Tameside and East Cheshire, and the same engineer surveys, quotes and completes the work. For the wider service page, see TV aerial repair Stockport.
Frequently asked questions
Why does one TV say 'no signal' but the others are fine?
The broadcast signal is reaching your property — otherwise every TV would fail. The fault is somewhere in the delivery to that specific TV: usually the fly lead, wall socket, a splitter output, or the TV's own tuner.
Can I fix it by moving the aerial?
No. If other TVs in the house work fine on the same aerial, moving the aerial won't help and may make things worse for the sets that were previously working. The fault is downstream of the aerial.
How long does this kind of repair take?
Most single-TV no-signal faults are diagnosed in under half an hour with a meter and fixed the same visit — usually a new wall plate, fly lead, or a splitter replacement.
Need help with TV signal problems in Stockport, South Manchester, Tameside or East Cheshire? Evolution Data & Digital is a local, engineer-led business — not a call centre or franchise. We test the system properly, explain the fault and agree the price before any repair or installation work begins. Call 0161 399 1757 or contact us online.
Free survey & quote, no callout charge. Most jobs same or next day.