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Fix a TV that has satellite box that will not work

We'll check input, satellite box, coax, dish obstruction, and power-cycle—or tell you when to call your provider or a technician.

Troubleshooting · Home electronics
10–20 min
What you'll need
  • TV remote
  • Satellite remote
  • HDMI cable
Step 1 of 7

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Steps

Goal: Confirm the symptom, check input and satellite box, then rule out connections and signal issues.

Check input and satellite box

Goal: Confirm the correct input is selected and the satellite box is on.

  • Use the TV remote to select the input where the satellite box is connected—HDMI 1, HDMI 2, etc.
  • Confirm the satellite box is powered on and not in standby. Wake it with the remote or a button on the box.
  • Good: Correct input selected and satellite box is on. The signal appears. Done.
  • Bad: Still no signal—proceed to Check coax and dish.

Check coax and dish

Goal: Rule out loose coax and LNB signal blockage.

  • Check the coax cable from the dish is firmly screwed to the SATELLITE IN port on the satellite box.
  • Check the dish from the ground for snow, ice, leaves, or debris. Do not climb on the roof.
  • Run a signal test in the satellite box menu—Settings, System Setup, or Signal.
  • Good: Coax is snug and signal test shows signal. Proceed to reseat HDMI and power-cycle.
  • Bad: Signal test shows 0—clear obstruction if safe, or call your satellite provider. Do not adjust the dish on a roof yourself.

Power-cycle

Goal: Reset the satellite box and HDMI handshake.

  • Unplug the TV and the satellite box from power. Wait 30 seconds. Plug both back in. Turn on the satellite box first, then the TV.
  • Good: Power-cycle fixes the issue. The signal appears. Done.
  • Bad: Still no signal—call your satellite provider. Call a TV technician if the satellite box works on another TV.

When to get help

Call your satellite provider if:

  • The coax is connected, the satellite box is on, and the signal test shows 0. They can run diagnostics and schedule a technician for dish alignment.

Do not climb on the roof to adjust the dish. Call a professional.

Call a TV repair technician if:

  • The satellite box works on another TV but not this one, or no HDMI input works on the TV.

Verification

  • The TV shows a picture from the satellite box.
  • The correct input is selected.
  • The coax and HDMI cables are firmly connected.
  • The satellite box is on and channels tune.
  • The signal test in the satellite box menu shows adequate signal.

Escalation ladder

Work from the device outward. Stop when the problem is fixed.

  1. Input and satellite box Select correct input; confirm satellite box is on.
  2. Coax and dish Check coax from dish; clear obstruction; run signal test.
  3. HDMI and power-cycle Reseat HDMI; try different port and cable; power-cycle.
  4. Call provider Signal test shows 0—provider can run diagnostics and schedule dish alignment.
  5. Call a pro Do not climb on roof for dish. Call provider for alignment; call TV technician if box works on another TV.

What to capture if you need help

Before calling support or posting for help, have these ready. It speeds everything up.

  • TV model
  • Satellite box model
  • Satellite provider
  • Signal strength (from box menu)
  • Steps already tried

Is the correct input selected?

Wrong input shows no signal even when the satellite box is on.

Use the TV remote. Select the input where the satellite box is connected—HDMI 1, HDMI 2, etc. Correct input: check satellite box is on. Wrong input: select correct one, then test.

Yes No

You can change your answer later.

Select correct input

Select the input that matches your satellite box (e.g. HDMI 1). Confirm the satellite box is on. If signal appears, done. If not, check coax and run signal test.

Done

Is the satellite box on and coax connected?

Satellite box must be on. Coax from dish must be on SATELLITE IN.

Check satellite box is powered on. Check coax from dish is firmly connected to SATELLITE IN or LNB IN. On and connected: run signal test, check dish obstruction. Off or loose: fix those, then test.

Yes No

You can change your answer later.

Turn on satellite box and connect coax

Turn on the satellite box. Screw coax firmly to SATELLITE IN. Power-cycle TV and satellite box. Run signal test. If signal is 0, call your satellite provider—do not climb on roof.

Done

Does the signal test show signal?

Satellite box menu has signal strength or dish alignment test.

Run signal test in satellite box menu. Signal present: reseat HDMI, power-cycle. No signal (0): check dish obstruction; call provider for alignment—do not adjust dish on roof yourself.

Yes No

You can change your answer later.

Reseat HDMI and power-cycle

Unplug HDMI at both ends. Plug back in firmly. Try different port and cable. Power-cycle TV and satellite box. If signal appears, done. If not, call your satellite provider.

Done

Call satellite provider

Check dish for snow, ice, or debris from the ground. Do not climb on roof. Call your satellite provider—they can run diagnostics and schedule a technician for dish alignment.

Done

Reviewed by Blackbox Atlas

Frequently asked questions

Why would a satellite box not work?
Wrong input selected, satellite box off, loose coax, dish blocked by snow or debris, or dish knocked out of alignment. Check input, connections, and dish line-of-sight first.
Can I fix a satellite box that will not work myself?
Yes. Check input, satellite box power, coax connections, and dish obstruction. Power-cycle and run a signal test. Do not climb on the roof to adjust the dish—call your provider for alignment.
When should I call a technician?
If the satellite box shows 0 signal after checking connections and obstruction. Call your satellite provider—they can run diagnostics and schedule a technician for dish alignment. Do not adjust the dish yourself if on a roof.

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