Owner`s manual

Section 7: Troubleshooting
Section 7.10
After turning the Electric switch ON:
TS10:
The Hydro-Hot's 120 VAC Electric Heat-
ing Element does not operate (i.e. lack of
hot water and/or interior heat).
Q1: Is the Electronic Controller's Electric
Heating Element Status light illuminated?
(reference Figure 5)
A: If YES:
Perform
each of the following proce-
dures
as necessary until the problem
is
resolved.
1. Locate the Electronic Controller
and remove the Faceplate.
2. Locate the Electronic Controller's
JP-3
Plug and check for DC
voltage at Pin 11 (+) and Pin 12 (-),
reference Figure 3.
A: If voltage is present:
Check for loose wire connections
at Pin 11 (+) and Pin 12 (-) of the
JP-3 Plug. If the wire connec-
tions are in good condition,
proceed to Q2.
If no voltage is present:
Replace the Electronic Controller.
Please
contact our Technical
Department at 1-800-685-4298 for
assistance.
If NO:
Perform each of the following proce-
dures
as necessary until the problem
is resolved.
1. Locate the Electronic Controller
and
remove the Faceplate.
2. Locate the Electronic Controller's
JP-2
Plug. Use a jumper wire to
make a connection from the
Electric
(+) pin to the Electric (-)
pin,
reference Figure 3. Does
Electronic
Controller's Electric
Heating Element Status light
illuminate
?
A: If the Electric Heating Element Status
light
illuminates:
Check for loose wire connections
at Electric switch and at the JP-2
Plug's Electric (+) and Electric (-)
pin
s. If connections are in good
condition, replace the Electric
switch
.
If the Electric Heating Element
Status light did not illuminate:
Locate
the Electronic Controller's
JP-2 Plug and check for DC
voltage at the Electric (+) and
Electric
(-) pins, reference Figure
3.
If
no voltage is present:
Replace
the Electronic Controller.
Please
contact our Technical
Department at 1-800-685-4298 for
assis
tance.
Q2:
Has the Hydro-Hot's VAC High-Limit Ther-
mostat tripped?
WARNING: Turn the VAC breaker
OF
F prior to performing the follow-
ing checks. Failure to do so may
result
in serious bodily injury (i.e.
electrical
shock).
Remove the 4 in. x 4 in. Electric Heating
Element
Access Panel and locate the VAC
High-Limit
Thermostat, reference Figure 1.
Check
for continuity at the VAC High-Limit
Thermostat. Is continuity present?
A: If YES:
Proceed to Q3.
If NO:
Press the red reset button located on
the VAC High-Limit Thermostat.
Reset
the VAC breaker and then turn
the Electric switch ON.
NOTE: Although
the 120 VAC Electric Heating
Element is now functioning, be sure to perform
the following steps until the cause for over-
heating
has been discovered and corrected.
Failure to do so could result in another over-
heating condition.
Section 7.10,
continue
d
Page 37