Question 1

The water does not stay in the bowl.

Accepted Answer

Possible cause: The base to bowl band clamp is loose, or there is an improper seal around the flush ball due to dirt, debris, wear, or damage.. Tighten the band clamp adjustment nut. Inspect the flush ball and underside of the flush ball seal for dirt/debris and clean, or replace the flush ball seal and flush ball if worn or damaged.

Question 2

The flush ball does not close completely.

Accepted Answer

Possible cause: The base to bowl band clamp is over-tightened or the spring cartridge is weak/defective.. Loosen the band clamp adjustment nut. Test the pedal by pressing and quickly letting go; if it does not snap back, replace the spring cartridge.

Question 3

The water does not shut off in the toilet.

Accepted Answer

Possible cause: Dirt lodged in water valve seal, lever is bent down, water valve worn/defective, or spring cartridge weak/defective.. Disassemble and clean the water valve. Bend the front of the lever up approximately 0.1 in. (2 mm). Replace the water valve assembly or spring cartridge if necessary.

Question 4

Water does not enter the bowl properly.

Accepted Answer

Possible cause: Low incoming water pressure or clogged water valve filter screen.. Check incoming water pressure (35-40 psi). Remove and clean the filter screen in the water valve.

Question 5

Water leaking from the water valve.

Accepted Answer

Possible cause: Loose connection, worn/defective water valve, improperly seated water line connection, stripped threads, worn/missing seal, or cracked valve body.. Tighten the bottom cap, inlet fitting, and discharge hose band clamp. Ensure threads are not cross-threaded and tighten. Replace the water valve assembly if parts are worn, stripped, cracked, or missing.

Question 6

Water is leaking from the rear of the bowl.

Accepted Answer

Possible cause: Loose water supply hose connection, loose check valve assembly, worn/defective check valve, or cracked bowl.. Tighten the water supply hose connections and check valve-to-bowl connection. Replace the check valve assembly or the bowl if cracked or defective.

Question 7

[12V DC] Water does not shut off in the toilet.

Accepted Answer

Possible cause: Dirt is lodged in the water valve seal or lever is bent down holding the water valve open.. Disassemble and clean the water valve, or bend the front of the lever up approximately 0.1 in. (2 mm).

Question 8

[12V DC] Water does not shut off in the toilet.

Accepted Answer

Possible cause: The water valve is worn/defective or spring cartridge is weak/defective.. Replace the water valve assembly or replace the spring cartridge if the pedal does not snap back.

Question 9

[Mechanical/Water] Water does not enter the bowl properly.

Accepted Answer

Possible cause: Low water pressure or clogged water valve.. Check incoming water pressure (35-40 psi) and remove/clean the filter screen in the water valve assembly.

Question 10

[Mechanical/Water] Water leaking from the water valve.

Accepted Answer

Possible cause: Loose connection, worn/defective water valve, improperly seated water line connection, stripped threads, worn seal, or cracked body.. Tighten bottom cap, inlet fitting, and discharge hose clamp. Ensure threads are not cross-threaded. Replace water valve assembly if threads are stripped, seals are worn, or body is cracked.

Question 11

[Mechanical/Water] Water is leaking from the rear of the bowl.

Accepted Answer

Possible cause: Loose water supply hose connection, loose check valve assembly, worn/defective check valve, or cracked/defective bowl.. Tighten water supply hose connections and check valve-to-bowl connection. Replace check valve assembly or bowl if cracked or defective.

Question 12

[Mechanical/Water] The water does not stay in the bowl.

Accepted Answer

Possible cause: The base to bowl band clamp is loose, improper seal due to dirt/debris under the flush ball seal, worn/damaged flush ball seal, or worn/damaged flush ball.. Tighten the band clamp adjustment nut. Inspect and clean the flush ball and underside of the seal. Replace the flush ball seal or flush ball if necessary.

Question 13

[Mechanical/Water] The flush ball does not close completely.

Accepted Answer

Possible cause: The base to bowl band clamp is over-tightened causing too much tension, or the spring cartridge is weak/defective.. Loosen the band clamp adjustment nut. Press the pedal and quickly let go; if the pedal does not snap back, replace the spring cartridge.

Question 14

[Mechanical/Water] The water does not shut off in the toilet.

Accepted Answer

Possible cause: Dirt lodged in the water valve seal, lever is bent down keeping the valve open, water valve is worn/defective, or spring cartridge is weak/defective.. Disassemble and clean the water valve. Bend the front of the lever up approximately 0.1 in. (2 mm). Replace the water valve assembly or spring cartridge if necessary.

Error Code / Indicator	Symptom / Meaning	Step-by-Step DIY Fix	Suggested Actions
`N/A`	The water does not stay in the bowl. Possible Cause: The base to bowl band clamp is loose, or there is an improper seal around the flush ball due to dirt, debris, wear, or damage.	Tighten the band clamp adjustment nut. Inspect the flush ball and underside of the flush ball seal for dirt/debris and clean, or replace the flush ball seal and flush ball if worn or damaged.	DIY Safe
`N/A`	The flush ball does not close completely. Possible Cause: The base to bowl band clamp is over-tightened or the spring cartridge is weak/defective.	Loosen the band clamp adjustment nut. Test the pedal by pressing and quickly letting go; if it does not snap back, replace the spring cartridge.	DIY Safe
`N/A`	The water does not shut off in the toilet. Possible Cause: Dirt lodged in water valve seal, lever is bent down, water valve worn/defective, or spring cartridge weak/defective.	Disassemble and clean the water valve. Bend the front of the lever up approximately 0.1 in. (2 mm). Replace the water valve assembly or spring cartridge if necessary.	DIY Safe
`N/A`	Water does not enter the bowl properly. Possible Cause: Low incoming water pressure or clogged water valve filter screen.	Check incoming water pressure (35-40 psi). Remove and clean the filter screen in the water valve.	DIY Safe
`N/A`	Water leaking from the water valve. Possible Cause: Loose connection, worn/defective water valve, improperly seated water line connection, stripped threads, worn/missing seal, or cracked valve body.	Tighten the bottom cap, inlet fitting, and discharge hose band clamp. Ensure threads are not cross-threaded and tighten. Replace the water valve assembly if parts are worn, stripped, cracked, or missing.	DIY Safe
`N/A`	Water is leaking from the rear of the bowl. Possible Cause: Loose water supply hose connection, loose check valve assembly, worn/defective check valve, or cracked bowl.	Tighten the water supply hose connections and check valve-to-bowl connection. Replace the check valve assembly or the bowl if cracked or defective.	DIY Safe
`N/A`	[12V DC] Water does not shut off in the toilet. Possible Cause: Dirt is lodged in the water valve seal or lever is bent down holding the water valve open.	Disassemble and clean the water valve, or bend the front of the lever up approximately 0.1 in. (2 mm).	DIY Safe
`N/A`	[12V DC] Water does not shut off in the toilet. Possible Cause: The water valve is worn/defective or spring cartridge is weak/defective.	Replace the water valve assembly or replace the spring cartridge if the pedal does not snap back.	DIY Safe
`N/A`	[Mechanical/Water] Water does not enter the bowl properly. Possible Cause: Low water pressure or clogged water valve.	Check incoming water pressure (35-40 psi) and remove/clean the filter screen in the water valve assembly.	DIY Safe
`N/A`	[Mechanical/Water] Water leaking from the water valve. Possible Cause: Loose connection, worn/defective water valve, improperly seated water line connection, stripped threads, worn seal, or cracked body.	Tighten bottom cap, inlet fitting, and discharge hose clamp. Ensure threads are not cross-threaded. Replace water valve assembly if threads are stripped, seals are worn, or body is cracked.	DIY Safe
`N/A`	[Mechanical/Water] Water is leaking from the rear of the bowl. Possible Cause: Loose water supply hose connection, loose check valve assembly, worn/defective check valve, or cracked/defective bowl.	Tighten water supply hose connections and check valve-to-bowl connection. Replace check valve assembly or bowl if cracked or defective.	DIY Safe
`N/A`	[Mechanical/Water] The water does not stay in the bowl. Possible Cause: The base to bowl band clamp is loose, improper seal due to dirt/debris under the flush ball seal, worn/damaged flush ball seal, or worn/damaged flush ball.	Tighten the band clamp adjustment nut. Inspect and clean the flush ball and underside of the seal. Replace the flush ball seal or flush ball if necessary.	DIY Safe
`N/A`	[Mechanical/Water] The flush ball does not close completely. Possible Cause: The base to bowl band clamp is over-tightened causing too much tension, or the spring cartridge is weak/defective.	Loosen the band clamp adjustment nut. Press the pedal and quickly let go; if the pedal does not snap back, replace the spring cartridge.	DIY Safe
`N/A`	[Mechanical/Water] The water does not shut off in the toilet. Possible Cause: Dirt lodged in the water valve seal, lever is bent down keeping the valve open, water valve is worn/defective, or spring cartridge is weak/defective.	Disassemble and clean the water valve. Bend the front of the lever up approximately 0.1 in. (2 mm). Replace the water valve assembly or spring cartridge if necessary.	DIY Safe

Dometic Gravity-discharge Toilet

Technical Specifications

Master Troubleshooting & Diagnostics Matrix