Leakage checkpoints – State PR6 50 NHDST2 User Manual

Page 25

LEAKAGE CHECKPOINTS

Read this manual first. Then before checking the water heater make
sure the gas supply has been turned “OFF”, and never turn the gas
“ON” before the tank is completely full of water.

A. *Condensation may be seen on pipes in humid weather or pipe

connections may be leaking.

B. *The anode rod fitting may be leaking.

C. Small amounts of water from temperature-pressure relief valve

may be due to thermal expansion or high water pressure in your
area.

D. *The temperature-pressure relief valve may be leaking at the tank

fitting.

E. Water from a drain valve may be due to the valve being slightly

opened.

F. *The drain valve may be leaking at the tank fitting.

G. Combustion products contain water vapor which can condense on

the cooler surfaces of the tank. Droplets form and drip onto the
burner or run on the floor. This is common at the time of start-up
after installation and when incoming water is cold.

H. Water in the water heater bottom or on the floor may be from

condensation, loose connections, or the relief valve. DO NOT replace
the water heater until a full inspection of all possible water sources
is made and necessary corrective steps taken.

Leakage from other appliances, water lines, or ground seepage should
also be checked.

To check where threaded portion enters tank, insert cotton swab
between jacket opening and fitting. If cotton is wet, follow “Draining”
instructions in the “Periodic Maintenance” section and then remove
fitting. Put pipe dope or teflon tape on the threads and replace.
Then follow “Filling the Water Heater” instructions in the “Installing
the New Water Heater” section.

FIGURE 40.

SERVICE

If a condition persists or you are uncertain about the operation of the
water heater contact a service agency.

Use this guide to check a “Leaking” water heater. Many suspected
“Leakers” are not leaking tanks. Often the source of the water can be
found and corrected.

If you are not thoroughly familiar with gas codes, your water heater,
and safety practices, contact your gas supplier or qualified installer to

check the water heater.

FIGURE 41.