WL100
Operating,
Installation,
and
Service
Manual
Page
45
Revision:
5
‐
20
‐
2016
Thermostat
or
overload
“open”
on
Hot
Tank
Turn
Power
off.
Check
OHM’s
resistance
across
terminals
on
each
Thermostat
and
Overload
separately.
Good
components
will
indicate
a
closed
circuit
or
zero
OHM’s
on
the
meter.
Replace
components
as
necessary.
Loose
or
improperly
connected
wire(s)
to
the
heating
element
/
hot
tank.
Visually
inspect
wire
leads
gong
to
the
hot
tank;
confirm
proper
connections
to
the
heating
elements.
Hot
tank
life
is
3
‐
5
years
depending
on
usage,
depending
on
usage.
*Typically
dealers
swap
out
the
hot
tank
at
site,
take
back
to
the
shop
to
repair.
Heating
Coil
Not
Working
Turn
Power
off;
Drain
hot
tank;
Use
multi
‐
meter
to
check
heater
element
for
approximately
26
OHM’s
resistance.
Hot
tank
must
be
empty
if
you
are
checking
for
continuity.
Replace
Hot
Tank
as
necessary.
Improper
Jumper
Settings
The
unit
has
been
changed
to
a
cold/ambient
setting
(JP9
has
been
moved
from
Pin
1
and
Pin
2).
Verify
that
Jumper
Pins
are
located
properly
for
Hot
Water
Option.
See
Changing
Hot
Water
Mode
to
Ambient
Water
Instructions
included
further
below
in
this
Troubleshooting
Section
