172-65441A-04 (JL14-X/JLH14-X/JLH14-B) 20 Jan 2021
15
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
When the product fails to operate properly, use the following table to locate the
cause and remedy.
Problem
Diagnosis (Cause)
Remedy
No
condensate is
discharged
(blocked) or
discharge is
poor
Check to see if the operating conditions are outside the
specification ranges:
- Is the pressure differential suitable for the amount of
condensate generated?
- Has the maximum operating pressure been exceeded?
Compare
specifications with
actual operating
conditions
Check to see if the trap installation method and location
are suitable:
- Is the trap inlet pipe installed so the fluid flows
downward naturally?
- Are the sizes of the inlet and outlet pipes suitable?
- Has steam-locking occurred?
Change to a
suitable piping
arrangement
Check the inlet and outlet valve open/close status and
check to see if the valve is clogged with dirt:
- Are the inlet and outlet valves fully open?
- Is the inlet strainer clogged with dirt?
- Are the pipes clogged with dirt?
- Is there accumulated dirt at the bottom of the body,
particularly below the trap unit (main valve unit)?
Inspect and clean
Check sliding sections of the lever unit:
- Is rust and/or scale obstructing movement of the lever
unit?
- Is the movement of the lever smooth?
Clean or replace
with a new lever unit
Check sliding sections of the trap unit (main valve unit):
- Is there rust and/or scale in the sliding sections?
- Is the movement of the valve smooth?
Clean or replace
with a new trap unit
(main valve unit)
Check the float to see if it is damaged or filled with water Replace with a new
float
Steam is
discharged or
leaks from
the trap outlet
(blowing)
(steam
leakage)
Check minimum required condensate amount:
- Actual condensate amount falls below minimum
required amount
Replace with a
product that has a
suitable capacity
rating
Check the trap unit (main valve unit):
- Check for a clogged valve opening or rust and scale
under the float
- Check for damage to the valve opening
- Check for rust and scale in the sliding sections
- Is the movement of the valve smooth?
- Are the gaskets deteriorated or damaged?
Clean or replace
with new parts/trap
units
Troubleshooting continued on next page
