Toilet Will Not Flush

Quick answer

If your toilet won't flush, first check the water level in the tank and ensure the flapper is open. If the handle is loose, tighten it or replace the chain. For a clogged toilet, use a plunger or a toilet auger to clear the blockage.

Confirm the symptom

• Toilet handle does not move when pressed
• Toilet tank is empty or has low water level
• Toilet bowl water is not draining
• Toilet flapper is stuck closed
• Toilet chain is tangled or broken

Tools and prep

• Adjustable wrench
• Plunger
• Toilet auger
• Screwdriver
• Bucket
• Rubber gloves
• Shut off water supply to the toilet
• Turn off electricity to the toilet if applicable

Step-by-step troubleshooting

1. Check Water Supply
   Do: Locate the water shut-off valve near the base of the toilet and ensure it is fully open.
   Observe: Water should flow into the tank when the valve is open.
   Means: The water supply is not restricted.
   Next: If water is not flowing, check for a clogged valve or pipe.
2. Inspect Flapper and Chain
   Do: Lift the tank lid and check if the flapper is open and not obstructed. Ensure the chain is properly attached and not tangled.
   Observe: The flapper should lift freely when the handle is pressed.
   Means: The flapper and chain are functioning correctly.
   Next: If the flapper is stuck, clean or replace it. If the chain is tangled, untangle or replace it.
3. Test Toilet Handle
   Do: Press the handle and observe if it moves freely and lifts the flapper.
   Observe: The handle should move smoothly and lift the flapper.
   Means: The handle mechanism is working properly.
   Next: If the handle is loose or damaged, tighten or replace it.
4. Check Water Level
   Do: Ensure the water level in the tank is at least 1 inch below the overflow tube.
   Observe: Water should be at the correct level without overflowing.
   Means: The toilet is receiving enough water to flush properly.
   Next: If the water level is too low, adjust the float or fill valve.
5. Use a Plunger
   Do: If the bowl is not draining, use a plunger to clear any blockages in the drain pipe.
   Observe: Water in the bowl should start to drain after plunging.
   Means: The blockage has been cleared.
   Next: If plunging does not work, use a toilet auger to clear the clog.
6. Use a Toilet Auger
   Do: Insert the auger into the toilet bowl and rotate the handle to clear any stubborn clogs.
   Observe: The auger should reach the clog and clear it.
   Means: The drain is now clear.
   Next: Flush the toilet to ensure it drains properly.
7. Inspect Fill Valve
   Do: Check the fill valve for any signs of damage or blockage.
   Observe: The fill valve should allow water to flow into the tank.
   Means: The fill valve is functioning properly.
   Next: If the fill valve is faulty, replace it with a new one.
8. Check for Clogs in the Trapway
   Do: Use a flashlight to inspect the trapway for any visible blockages.
   Observe: The trapway should be clear of any obstructions.
   Means: The trapway is not clogged.
   Next: If a clog is found, use a toilet auger to remove it.

Common causes

Parts matching

Common parts needed to fix a toilet that won't flush include:

• Fill valve
• Flapper
• Toilet auger
• Chain
• Handle assembly
• Water supply valve

When replacing parts, ensure they are compatible with your toilet model for the best results.

When to call a professional

• If the toilet still will not flush after following all troubleshooting steps
• If there is a persistent clog that cannot be cleared with a plunger or auger
• If water continues to leak from the tank or bowl
• If the toilet is making unusual noises during flushing
• If the toilet is over 20 years old and requires major repairs

FAQ

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