Owner`s manual

Hydro-Hot Hydronic Heating System Shop Manual 07/03
R
Page 17
and/or loose connections, and
ensure that all of the Hydro-Hot's
electrical
motors are operating
normally
when under load.
NOTE: If after testing and correcting the battery
system, the Low Battery Voltage Fault indicator
light
continues to illuminate, and/or if the Low
Voltage Reset (button) will not reset, the Elec-
tronic
Controller must be replaced. Please
contact our Technical Department at 1-800-
685-429
8 for assistance.
Q3
:
Is the Electronic Controller's Diesel-
Burner Status light illuminated?
A:
If NO:
Perform
each of the following
procedures as necessary until the
problem is resolved.
If
YES:
Proceed to Q5.
a. Remove the Electronic Controller's Faceplate.
Use a jumper wire to make a connection from
the Diesel (+) to the Diesel (-) on the JP-2
Plug
, reference Figure 3. Does the Diesel-
Burner Status light illuminate?
A: If YES:
Th
e Diesel switch must be replaced.
Please contact our Technical Depart-
ment
at 1-800-685-4298 for assis-
tance. Attempt heater restart.
If
NO:
Continue troubleshooting.
b. Turn the Diesel switch OFF (also, make sure
the Electric switch is OFF ). Use a jumper
wire to make a connection from Pin 13 to Pin
14
on the JP-3 Plug, reference Figure 3. With
the jumper wire in place, turn the Diesel
switch ON. Does the Diesel-Burner ignite and
the Diesel-Burner Status light illuminate?
A: If YES:
The VDC / VAC Control Thermostat
must
be replaced, reference Figure
3. Please contact our Technical
A: If YES:
Check
the JP-3 Plug for loose wire
connections and/or harness damage.
If NO:
The Electronic Controller must be
replaced.
Please contact our Techni-
cal Department at 1-800-685-4298 for
assistance.
Q2
:
Is the Electronic Controller's Low Battery
Voltage Fault light illuminated?
A: If YES:
Perform
each of the following
procedures as necessary until the
problem
is resolved.
If NO:
Proceed to Q3.
a. Remove the Electronic Controller's Faceplate.
Check the DC battery voltage level at the
supply
batteries and at the Electronic
Controller's Battery Connections, reference
Figure 3. Both voltage readings should be
between
11.5 and 14.0 volts.
A: If the voltage level is within specs:
Continue troubleshooting.
If
the voltage level is out of specs:
Recharge and/or replace batteries, if
necessar
y.
b. Reset the Low Voltage Reset (button) on the
Electronic Controller (this can be accom-
plished
by using a thin straight object to
access the reset button through the small
hole in the Faceplate). Continue to read the
vol
tage level at the Electronic Controller's
Battery
Connections and then turn the Diesel
switch
ON. Under load, is the voltage level
within
0.5 volts of the supply battery's volt-
age
?
A: If YES:
See the "NOTE" at the top right of
this
page.
If
NO:
Load-test the supply batteries,
inspect
battery wiring for damage
Section 7.1,
continue
d
Section 7: Troubleshooting
Section 7.1,
continue
d