Toilet Won't Flush: How to Fix It Yourself

Quick answer

First, check for a clogged toilet or a stuck float. If the water level is too low, adjust the float. For a clog, use a plunger or toilet auger. If the fill valve is faulty, replace it.

Confirm the symptom

• Toilet handle doesn't move or feels stuck
• Water doesn't enter the bowl when flushed
• Toilet doesn't siphon water out of the bowl
• Toilet tank doesn't fill after flushing
• Toilet handle moves but no water flows

Tools and prep

• Rubber gloves
• Toilet plunger
• Toilet auger (snake)
• Adjustable wrench
• Screwdriver
• Bucket
• Turn off water supply to the toilet
• Wipe up any standing water before starting

Step-by-step troubleshooting

1. Check for a Clogged Toilet
   Do: Use a plunger to try to clear the clog.
   Observe: Water should start to drain from the bowl.
   Means: The clog is cleared or partially cleared.
   Next: If water doesn't drain, proceed to the next step.
2. Use a Toilet Auger
   Do: Insert the auger into the toilet bowl and crank the handle to break up the clog.
   Observe: You feel resistance and then it gives way.
   Means: The clog is cleared.
   Next: Flush the toilet to see if it works.
3. Inspect the Float
   Do: Check the float in the tank to see if it's stuck or set too low.
   Observe: The float moves freely and is at the correct water level.
   Means: The float is functioning properly.
   Next: If the float is stuck, adjust or replace it.
4. Adjust the Water Level
   Do: Adjust the float so the water level is about 1 inch below the overflow tube.
   Observe: The water level rises to the correct height.
   Means: The water level is set correctly.
   Next: Test the toilet by flushing it.
5. Check the Flapper Valve
   Do: Ensure the flapper valve is opening and closing properly.
   Observe: The flapper opens when the handle is pressed and closes after flushing.
   Means: The flapper is working correctly.
   Next: If the flapper is damaged, replace it.
6. Inspect the Fill Valve
   Do: Check the fill valve for any signs of damage or blockage.
   Observe: The fill valve is functioning and allowing water to flow into the tank.
   Means: The fill valve is working properly.
   Next: If the fill valve is faulty, replace it.
7. Test the Toilet
   Do: Flush the toilet to see if it works properly.
   Observe: The toilet flushes completely and refills the tank.
   Means: The issue is resolved.
   Next: If the problem persists, consider calling a professional.

Common causes

Parts matching

Common parts needed for a toilet that won't flush:

• Toilet plunger
• Toilet auger
• Float assembly
• Flapper valve
• Fill valve
• Toilet handle

Purchase parts that match your toilet model for the best results.

When to call a professional

• The toilet still won't flush after trying all troubleshooting steps
• There's a persistent clog that can't be cleared with a plunger or auger
• The toilet is leaking water continuously
• You notice cracks or damage to the toilet bowl or tank
• The problem is related to a clogged or damaged vent pipe
• You're unsure about how to proceed with repairs

FAQ

Related guides

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• toilet won't flush how to fix

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