Check below the main problems and inquiries regarding the pipeline.
※Click on the desired subject for the details.
【 Water Supply/Pipeline 】
【 Kitchen 】
【 Water heater 】
【 Electric water heater 】
Most apartments have a gas chamber with the heater, water and gas pipes by the side of the front door.
When you open gas chamber door, you can see the gas meter, the gas valve and the water valve of the heater inside.
Picture example: Left side: water valve. Right side: gas valve. Bottom: Gas meter.
Please click on the desired item shown below to check the details.
Lock type that has a dent.
Use a screwdriver or a coin in the dent and turn to unlock.
Lock type that has a button and handle.
When you press the button, the handle will come out. Use the handle to pull and open the door.
Lock type with a handle and lock inside.
Press the top part for the handle to come out and turn the handle to unlock, then pull the door to open.
※This type of door only opens one side at first.
To open the other side, please unlock the stopper in the inner side of the door.
■ How to unlock the stopper (Be sure to check the room number)
・First, open the door with the front lock.
・The stopper locks are installed on the top and bottom in the inner side of the other door. Press the button or unlock the stopper.
Some buildings may have a different type of gas chamber door lock.
File an [Inquiry form] if you are unable to open the door.
The gas meter has safety sensors that will cut the connection of the gas automatically to prevent accidents with gas leaks.
If the gas meter has a LCD screen, it will show on the display the reason of the gas was cut with a combination of alphabet letters. Please check the details below and try restoring the gas connection.
Gas meter LCD screen
|Cause of a problem|
・Using the gas for too long.
If you used too much gas (long shower, filling the bathtub, etc.)
・Gas flow over a certain amount.
When using too much gas at the same time. (i.e.: Using all the gas stove burners and the hot water.)
|・When it detects strong vibrations or shakes, i.e. due to an earthquake.|
・When the propane (LP) gas cylinder is empty.
Contact your gas company for a resupply.
※If the display is showing a different message than the ones described above, contact your gas supply company or file an [Inquiry form] for more information.
※If there is only "ガス止" mark without the alphabet letters on the display, check if you already completed the procedure to open the gas connection with the gas company.
⇒ In order to use hot water with the water heater, you will need to have a contract with a gas company to supply the gas for your unit.
If you have a contract with the utilities included, such as the short term Monthly contracts, you do not need to request the procedure to open the gas. Please report to us through an [Inquiry form].
■ Water heater installed outside of the room:
Left side - Water valve. Right side - Gas valve.
Valve knob parallel to the pipe: Open. Valve perpendicular to the pipe: Closed.
■ Water heater installed inside the room (Hokkaido region):
Left knobs - water valve. Right knob - Gas valve.
Valve knob parallel to the pipe: Open. Valve perpendicular to the pipe: Closed.
It depends on the models of the electric water heater. If you don't have the manual or can check the heater specifications, consider the standard amount of 150L to 200L (Around two bathtubs).
② - 1：Open the door under the water heater. (Check here how open the door)
② - 2：Check the water valve position.
-If the water valve knob is parallel with the pipe, it means it's open.
-If it's a round valve, open it counter-clockwise.
② - 3：Some buildings also have water valves for the faucet installed on the kitchen sink. Check inside the cupboard for the valves.
If there is no problem with the water valves, try to turn off and on again the main switch of the circuit breaker. (Will reset the water heater to solve configuration problems.)
Check below the reasons that may have caused the water to stop flowing.
※Check here ways to prevent the freezing of the pipeline.
※The water may also be cut temporarily for the cleaning of the water tank.
The rooms are notified beforehand and a notice is posted on the notice board, informing the date and time of the cleaning and inspection.
When using hot water, the temperature is controlled by mixing the hot water with the cold (room temperature) water.
If you do not open the hot water valve enough, the water heating may become unstable due to the lack of water passing through the water heater. Please, open all the hot water valve and then regulate with the cold water faucet.
※If there is not enough water passing through the heater, it will stop heating the water completely.
If only normal water starts flowing, close the faucets and open again to turn on the water heater and have the hot water again.
If the problem persists even after checking the items above, the water heater may have malfunction.
Please, file an [Inquiry form] with the details of the problem and the information of your water heater.
An inspection of the pipeline will be needed even if you can not find a water leak.
Please, file an [Inquiry form] with the details.
Inform the local of the room and details of the leak through our [Inquiry form].
● Water is leaking from the bathroom faucet even after closing.
● Water is leaking from the base of the handle of the kitchen's tap.
After checking the details provided, we will arrange repair.
If there is food/waste accumulated in the drain basket filter, it may be clogging the sink and decreasing the drainage capacity.
Check if the filters inside the drain are clean.
(Use a brush to remove the accumulated dirty between the nets on the basket)
Some sinks also have a rubber filter which may slow the draining when covering the drain. You can remove the filter when necessary.
The drain cover is to stop the water from draining.
The drain rubber to prevent bigger solids from flowing into the drainage.
Note that the drainage will be slower when it is installed.
|The drain basket filter is installed to stop smaller solids from flowing into the drainage.
If the drainage basket is dirty, the drainage will become slower.
※In some cases, the cost may be charged for repairs caused by the tenant carelessness (i.e. dropping items in the drain) or negligence (i.e. lack of cleaning).
Inside the drain there is a part that traps the running water before draining so the air with the smell of the sewerage does not get into the room.
If the drain is not regularly used, the water accumulated on the trapping part may evaporate and the smell will manage to get into the room.
※The basket filter inside the drain also has the function to block the smell coming from the sewerage.
Please, keep the basket installed and clean.
For further questions, file an [Inquiry form] with the details.
The water may be leaking from the water pipes below the sink in the kitchen.
We will arrange the repairs, so please file a report through our [Inquiry form].
Tenant who are moving in and using the hot water for the first time.
■Water comes out from the hot water side of the faucet, but it is not warm.
The gas may be temporarily shut due to the safety system.
※Some water heaters also have a controller inside the room with a power button. Be sure the power switch is ON (入) before using the hot water.
【Restoring the gas connection】
①Close the hot water faucets, then proceed to check the gas meter display.
※If there is no problem on the gas meter, it may be improved by turning on and off the circuit breaker.
② Check how to restore the gas connection below (Video in Japanese).
② Restoring the gas connection:
※Click on the type installed in your room for the information:
Gas meter with a button cap.👈
Gas meter without a button cap (with a LCD screen)👈
※If the water flow/pressure for the hot water is too low, the heater may stop heating the water.
Raising the normal (cold) flow will make the hot water flow decrease, making the heater stop.
If there is no improvement after trying the instructions above, contact your gas supply company to check the contract condition. If there is no problem with the gas supply, the water heater may have a malfunction. Please, file an [Inquiry form] with the details.
The water supply pipe of the water heater may burst when the water inside freezes and expand, causing it to leak.
Please, check the room number of the water heater that is leaking and inform us through our [Inquiry form].
※If you cannot reach the vent, do not take the risk and inform through our [Inquiry form] the details.
"Exhaust vent (smokestack)."
The electric water heater uses the electricity during late night to heat the water to be used during the day.
When there is no hot water, you may consider the possible causes below:
If there is no issue after checking above, please check the manufacturer and model number of the electric water heater and inform us from [Inquiry form].
For information regarding gas heaters, check here.
The location will depend on the building, but it is usually installed in the ground of the ground floor of the building's common areas, such as the corridor close to the entrance of the rooms or the back passage.
Some building may also have the water meter installed inside the pipe space below the water heater.
Once you open the door of the gas chamber, you can find it on the ground inside.
If you cannot find the main water valve, contact your water supplier or file an [Inquiry form].
When the water stops flowing due to the freezing on the pipes, you can wait until the temperature rises and the water starts to flow again after the ice melts naturally.
※It may take time for the frozen water pipe to defrost, but you can shorten it by raising the temperature inside the room and around the area that use water.
If the water does not starts to flow again naturally, check the details below.
Ex: Water supply pipes of the water heater outside the room.