Basic Trouble-Shooting Guide - LATICRETE Floor HEAT Manual De Instalación

BASiC TROuBlE-ShOOTing guiDE

The following are basic trouble-shooting steps that can be taken if there are
problems with LATICRETE Floor HEAT products. A professional electrician should
be called in to trouble-shoot the system.
1. If LATICRETE Floor HEAT fails to heat, make sure there is power delivered
to the system and the GFCI (Ground Fault Circuit Interrupter) has not been
tripped. If it has, find the fault and rectify.
2. Check all of the wiring connections for the thermostat and/or timer to
ensure that all are connected tightly. If all connections have been done
properly and the system still does not heat, proceed to Step #3.
3. Disconnect the LATICRETE Floor HEAT supply leads from the thermostat to
check the resistance of each element.
A. 120-Volt Product: Test between the hot (Yellow or Black) and
neutral (White).
B. 240-Volt Product: Test between Line 1 (Red) and Line 2 (Black).
The chart on page 8 lists the proper Ohm Readings that should be obtained
for each mat size available. Use an Ohmmeter set to read resistance
readings below 200 Ohms to verify that all Ohm Readings taken are within
(+/-) 10% of the Theoretical Ohm Readings listed.
If the resistance/Ohm Reading is zero (0) or if it falls significantly outside
n
of the 10% variance from the Theoretical reading it is likely that the
heating wire was damaged. This may have been caused by damage to
one of the heating elements during the installation process or by changes
that were made in the floor structure (condition) after the flooring
was laid. The change, no matter how slight (i.e. putting a doorstop in
place, etc.) may have damaged the heating element. After locating the
possible problem area(s), please contact our Technical Service
Department at 1.800.243.4788 ext. 235 for further instructions.
If the resistance/Ohm Reading of the element(s) is found to be
n
acceptable, but the GFCI is tripping: Verify that that there is not a short
between the Hot (Line) and the ground. There should not be continuity.
If there is continuity it is likely that the heating element is damaged and
is causing a short in the system. STOP and call our Technical Service
Department at 1.800.243.4788 ext. 235 for further assistance.
A. 120-Volt Product: Test between the hot (Yellow or Black) and Ground
(Green) and also between the neutral (White) and Ground (Green).
B. 240-Volt Product: Test between Line 1 (Red) and Ground (Green)
and also between Line 2 (Black) and Ground (Green).
If the resistance/Ohm Readings of the element(s) are found to be
n
acceptable and the GFCI is not tripping, but the floor still does not heat, one
of the controls may be defective. Proceed to Step #4.
4. In order to isolate the problem (to the heating element or the controls),
connect the lead wires from the heating element (including the ground
wiring), directly to power source/GFCI. Wait approximately 60 minutes for
the floor to warm.
If the floor temperature does not rise despite the appropriate Ohm
n
Readings, please contact our Technical Service Department at
1.800.243.4788 ext. 235 so that we can further assist you in
investigating the problem.
If the floor warms when connected directly to the power source/GFCI, but
n
does not warm when it is connected through the controls the following may
be possible:
A. One of the controls may be faulty.
B. A connection may be faulty.
C. The floor sensor is not installed.
D. The floor sensor is not connected.
Proceed to step #5.
n
5. Check for proper Voltage (120V or 240V) at the input and output
connection of each control. When testing the voltage, make sure that
the controls are set to "ON". If voltage is not found in one/either of the
points of connection on the control, it may be faulty. If you suspect that the
thermostat or timer is faulty, please contact our Technical Service
Department at 1.800.243.4788 ext. 235 so that we can further assist
you in trouble-shooting, if necessary, or arrange for exchange of the faulty
product.
All electrical connections must be made by a licensed electrician and
13
comply with all applicable building and electrical codes. Failure to do so
voids all warranties and claims.