01
A degrading LNB
The most common cause by a wide margin.
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DStv signal problems
DStv signal problems, and what the error codes actually mean
DStv error codes are genuinely informative if you know how to read them. Most point at the dish, the LNB or the cable — and almost none point at a decoder that needs replacing.
Error codes decoded
Signal meter testing
Usually a cheap fix
Signal strength and signal quality are not the same thing
This distinction matters more than almost anything else in satellite work, and most people — including some installers — conflate the two. Signal strength is how much signal is arriving. Signal quality is how intact it is. You can have excellent strength and terrible quality, and the picture will still break up.
A dish that is slightly misaligned will typically produce good strength and poor quality: plenty of signal, but not cleanly locked onto the right satellite. A corroded connector produces the same pattern. A failing LNB usually degrades both.
This is why we align with a meter that reads both. Optimising for strength alone gets you a picture that works on a clear day and dies in the first thunderstorm. Optimising for quality as well is what gives an installation the margin to survive real weather.
The detail
The common error codes, and what they are telling you
They are more informative than they look.
E48-32 — no signal being received
The decoder is working and receiving nothing usable from the dish. The fault is in the signal path: LNB, connector, cable or alignment. It is one of the most common codes we are called about, and it is rarely the decoder.
E16 — scrambled or unavailable channel
Often a subscription or smartcard issue rather than a technical fault. Sometimes it indicates a signal too weak to decode the channel properly. We will tell you honestly which it is.
E30 — no signal on this transponder
Points at partial signal loss — some channels work, others do not. Classic symptom of a degrading LNB or a marginal alignment. The weakest transponders drop out first.
Pixelation and blocking
The picture breaks into squares. Signal quality is too low for the decoder to reconstruct the image cleanly. Usually a connector, an LNB or an alignment issue.
Rain fade
Heavy rain absorbs satellite signal. Every installation suffers it in a downpour. If yours suffers it in light rain, the installation has no margin and needs attention.
Some channels missing, others fine
A marginal signal. Different channels broadcast at different strengths, so the weakest ones disappear first while the strongest keep working. It is a clear warning that the whole path needs looking at.
What you get
What causes signal loss
Almost always outdoors.
02
Corroded connectors
Water in the connector at the dish end.
03
Dish misalignment
Wind, storms, birds or a leaning ladder.
04
Perished or damaged cable
UV damage, water ingress, or rodents.
05
Over-split signal
Feeding too many decoders from one dish.
06
Obstructed line of sight
Trees grow. Neighbours build. It happens.
Included
Every signal callout includes
Measured, not guessed.
Signal strength AND quality measuredTwo readings, two different meanings
LNB output testedThe most likely culprit
Connector inspection and replacementWeatherproofed properly this time
Cable condition and continuity checkEnd to end, including the roof run
Dish alignment optimisedFor quality as well as strength
Every channel testedIncluding the weak transponders that fail first
Our process
How we solve a signal fault
01
Tell us the error code
Write down exactly what the screen says. It genuinely narrows it down.
02
We measure at the wall point
Strength and quality, before we climb anything.
03
We trace the fault outdoors
LNB, connectors, cable, alignment — in that order.
04
We fix it and test every channel
Including the weakest ones, which fail first.
FAQ
DStv signal problems — your questions answered
The things people actually ask us on the phone, answered straight.
Not sure what is wrong?
WhatsApp us the make, the screen size and a short video of what the TV is doing. We can usually narrow the fault down before a technician is even dispatched.
WhatsApp 063 866 0971What does E48-32 mean on DStv?
It means the decoder is not receiving a usable signal from the dish. It is a signal-path error, not a decoder fault. The cause is almost always the LNB, a corroded connector, a damaged cable or a dish that has moved out of alignment.
Why does my DStv pixelate?
Signal quality is too low for the decoder to reconstruct the picture cleanly. Note that this is about quality, not strength — you can have plenty of signal arriving and still get pixelation if the signal is not clean. Usually the LNB, a connector or the alignment.
My DStv only breaks up when it rains.
Rain fade. Heavy rain absorbs satellite signal and every installation suffers it to some degree in a real downpour. But if it happens in light rain, your installation has no margin — the alignment is marginal or the LNB is on its way out. Both are fixable, and both are inexpensive.
Some channels work and others do not.
A marginal signal. Channels broadcast at different strengths, and the weakest ones drop out first while the strongest keep working. It is an early warning that the signal path needs attention before you lose everything.
Is E16 a signal problem or a subscription problem?
It can be either, which is exactly why it causes confusion. It often indicates a subscription or smartcard issue, but it can also appear when the signal is too weak to decode a channel properly. We will test the signal and tell you honestly which one you are dealing with.
How much does a DStv signal repair cost?
It depends what we find, but the good news is that the most common causes — a failed LNB, a corroded connector, a dish out of alignment — are all among the cheaper jobs we do. We quote a fixed price after the diagnosis.
Book a TV technician
Pixelating, breaking up, or no signal at all?
Tell us the error code on the screen. It usually tells us where the fault is before we even arrive.
DStv signal diagnosis and repair across Gauteng
Contact
Speak to a TV technician, not a call centre
- Call us
- 0861 995 085Open 24 hours · 7 days a week
- 063 866 0971Send a short video of the fault — it speeds everything up.
- Where we work
- Johannesburg, Pretoria, Sandton, Centurion, Midrand, the East Rand and the West RandSee every area we cover →