Troubleshooting - Toto TBV03427 Instruction Manual

Request for period parts replacement
For safe and comfortable use, the parts shown below must be replaced at regular
intervals.
Replacement of check valve
Check valve
*It is a smart idea to keep a record of after-sale services.
Date Contents of service
47
Standard period of
replacement:
Every 3 to 5 years
If the check valve does not work
properly, the water may flow back
through the valve.
This may also lead to unexpected
troubles such as water leaks.
Ask the installer or the dealer to
replace the check valve.
Person in charge

Troubleshooting

How to stop water in an emergency
In an emergency such as when water leaks from piping or the water
does not stop, close the main valve securely as explained in the
procedure shown in the figure below.
Main valve
Main valve
The following cases are not due to trouble. Check the following points before
asking for repair. If the trouble persists, ask the installer or the dealer for repair.
For details, please contact After-sale Services (Page 51).
Temperature does not stabilize / Hot water does not come out / The temperature of hot water is low
Before asking for repairs
Phenomena Check Point
Does the temperature
control of the water
faucet work well in
other places such as
the kitchen, toilet
room, etc. ?
Temperature
is not stable
(water is
Does the
lukewarm in
temperature stabilize
the beginning
if you let hot water
or the
run for a while?
temperature
changes
during use).
Are water faucets in
other places such as
kitchen and toilet
room being used at
the same time?
If the water does not stop, close
the main valve.
Remedy
If the temperature is not stable in other
places, the cause may exist in the hot
water supplier. Contact the manufacturer
of the hot water supplier.
If the temperature is not stable only
in the bathroom water faucet, please
check the following.
If the distance between the hot water supplier
and the faucet is long, it takes time until hot
water comes out. Once you stop the hot
water, the hot water in the pipes cools.
Therefore, let the hot water run for a while
until the temperature is stable.
The temperature may become unstable due
to changes in the water pressure in the pipes.
If the temperature becomes unstable only
when using other faucets simultaneously, do
not use the water faucet at the same time as
other faucets in the house.
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