172-65464MA-02 (JH8R-B) 18 Nov 2020
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 the cause and
remedy.
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
Air binding has occurred (air vent
valve seat is blocked or bimetal
plate is damaged)
Clean the valve seat or replace with
a new bimetal unit
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)
Build-up on the seating surface of
the orifice or rust and scale build-up
beneath the float
Clean parts
Scratches on the orifice
Replace with a new orifice
The float is misshapen or has a
build-up
Clean or replace with a 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
Gasket deterioration or damage
Replace with new gasket(s)
Improper tightening torques were
used
Tighten to the proper torque
Float frequently
becomes
damaged
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.
Cover Nut