172-65455MA-03 (JH7RL-B/JH7RM-B) 13 Jul 2015
13
Troubleshooting
NEVER apply direct heat to the float. The float may explode due to
increased internal pressure, causing accidents leading to serious injury
or damage to property and equipment.
WARNING
When disassembling or removing the product, wait until the internal
pressure equals atmospheric pressure and the surface of the product
has cooled to room temperature. Disassembling or removing the
product when it is hot or under pressure may lead to discharge of fluids,
causing burns, other injuries or damage.
CAUTION
If the product fails to operate properly, use the following table to locate and remedy
the cause.
Problem
Cause
Remedy
No condensate is
discharged
(blocked) or
discharge is poor
The float is damaged or filled with
condensate
Replace with a new float
The orifice opening, screen or piping are
clogged with rust and scale
Clean parts
The bimetal is damaged
Replace with a new bimetal
Steam locking has occurred
Perform a bypass blowdown,
or close the trap inlet valve
and allow the trap to cool
The trap operating pressure exceeds the
maximum specified pressure, or whether
there is insufficient pressure differential
between the trap inlet and outlet
Compare specifications and
actual operating conditions
Steam is
discharged or leaks
from the outlet
(blowing)
(steam leakage)
Clogged orifice opening or rust and scale
build-up beneath the float
Clean parts
Scratches on the orifice
Replace with new orifice
The float is misshapen or has surface
build-up
Clean or replace with new
float
Improper installation orientation
Correct the installation
Trap vibration
Lengthen the inlet piping and
fasten it securely
The bimetal air vent valve surface and/or
the air vent valve seat has a build-up or is
scratched
Clean or replace with a new
bimetal and/or air vent valve
seat
The bimetal is damaged
Replace with a new bimetal
Steam is leaking
from a place other
than the outlet
Check for gasket deterioration or damage Replace with new gasket(s)
Check to make sure that the proper
tightening torques were used
Tighten to the proper torque
Float frequently
becomes damaged
Check to see if water hammer has
occurred
Study and correct the piping
NOTE: When replacing parts with new, use the parts list for reference, and replace with parts from the
Maintenance Kit, Repair Kit, etc. Please note that replacement parts are only available as part
of a replacement parts kit.
