nVent.com | 9
7B. Test the heating cable’s resistance.
It is possible to test the resistance of Frostex
heating cable using a multimeter. Follow these
steps:
• Be sure the 9800 FlexFit plug is unplugged.
• Push in the red reset button on the plug.
• Connect the two lead wires on the meter to the
two flat prongs on the plug. The meter reading
should be between 2 and
20,000 ohms.
If your reading is within this range, you have
completed the installation.
If your reading is not within this range, repeat
Step 3, “Install the 9800 FlexFit plug” and
retest.
If your reading is still not within this range or
you have questions, call nVent for technical
support at (800) 545-6258.
PERIODIC INSPECTIONS
Each month
Test the 9800 FlexFit plug as described in Step
6B.
Periodically
Each time you plug in the system, and at least
once a year, do the following:
• Check the entire Frostex system for signs of
damage. Inspect any exposed portion of the
heating cable for evidence of cuts, nicks, abra-
sions, gnawing by animals, and any other physi-
cal damage.
• If there is damage, immediately replace the
damaged heating cable system and thermal
insulation. Do not attempt to repair any part of
the heating cable system.
• After a thorough inspection, start up the system
and test the 9800 FlexFit plug and system as
described in Steps 6 and 7.
TROUBLESHOOTING
Problem
: The red button pops out immediately
when the plug is plugged in,
or the button will not reset.
What to do
: A strand of braid may have entered
the heating cable guide during
Step 3B.
• Unplug the 9800 FlexFit Plug.
• Remove the cover (the reverse of Step 3D).
• Unscrew the two screws of the heating cable
guide (the reverse of Step 3C).
• Using a flat blade screwdriver, gently pry the
heating cable guide up until the heating cable
can be removed.
• Reinstall the screws completely into the heating
cable guide before re-attaching.
• Repeat installation steps 3A–3D, ensuring no
braid strands enter the heating cable guide
during Step 3B.
• Repeat Step 6, “Start up the system.”
Note:
If the 9800 FlexFit Plug red test
button continues to pop out, your system
is damaged and must be replaced.
Problem
: The signal light does not light up.
What to do
: Check to be sure the outlet has
power. If you are not certain how to do this,
call a professional service person.
If the outlet has no power, correct the problem,
then follow Step 6, “Start up the system.”
If the outlet has power but the signal light
still does not light up after you conduct the
test described in Step 6B, “Test the plug,” the
internal nonreplaceable fuse is blown. This
means the Frostex system is damaged and
must be replaced.
Problem
: The 9800 FlexFit plug does not trip
(red button does not pop out).
What to do
: Check to be sure the outlet has
power. If you are not certain how to do this,
call a professional service person.
If the outlet has no power, correct the problem,
then follow the instructions in Steps 6 and 7.
If the outlet has power but the 9800 FlexFit
plug still fails to trip, the Frostex system is
damaged and must be replaced.
Problem
: The heating cable fails to warm up or
water is not warm after testing the system.
What to do
: The heating cable may not be fully
inserted into the heating cable guide, or the
guide may not be screwed down completely.
• Unplug the 9800 FlexFit Plug.
• Remove the cover (the reverse of Step 3D).
• Unscrew the two screws of the heating cable
guide (the reverse of Step 3C).
• Using a flat blade screwdriver, gently pry the
heating cable guide up until the heating cable
can be removed.
• Reinstall the screws completely into the heating
cable guide before re-attaching.
• Repeat installation steps 3A–3D, ensuring no
braid strands enter the heating cable guide
during Step 3B.
• Repeat Step 6, “Start up the system.”
