Aqua-Hot Hydronic Heating System Shop Manual 09/04
®
SECTION 7: TROUBLESHOOTING
Section 7.6,
continued
Section 7.6,
continued
II.
Reset the
Low Voltage Reset
(button) on the
Electronic Controller
(this can be accom-
plished either by using a thin, straight object
to access the reset button through the small
hole in the Faceplate or by turning
OFF
the
“Diesel”
switch on the Heater’s Interior
Switch Panel for approximately 30 seconds,
then turning the switch back
ON
). Continue
to read the voltage 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 batteries’ voltage.
A:
If YES:
Reference “NOTE (7.6-A).”
If NO:
Load-test the supply batteries,
inspect battery wiring for damage
and/or loose connections, and
ensure that all of the Aqua-Hot's
electrical motors are operating
normally when under load.
NOTE (7.6-B):
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
the Technical Support Department at
1-800-685-
4298
for assistance.
NOTE (7.6-C):
In order to perform some of the
following procedures, it may be necessary to detach
the
Diesel-Burner Head
from the
Aqua-Hot
. There-
fore, be sure to reference Section 8.2 for detaching
and reattaching instructions.
Q2 : Is the Diesel-Burner’s
Fuel Nozzle
function-
ing properly?
I.
In order to determine if the
Fuel Nozzle
is
functioning properly, reference Section 8.6
and perform the Fuel Nozzle’s “Component
Test.”
A:
If the
Fuel Nozzle
is not functioning
properly:
The
Fuel Nozzle
must be
replaced; reference Section 8.6
for replacement instructions.
(continued on next page)
Ignition
Electrodes
Photo Disc
Flame Sensor
Fuel Pump
Fuel Solenoid
Fuel
Nozzle
Diesel-Burner
Controller
Ignition Coil
Diesel-Burner
Controller
Diesel-Burner
Head
Illustration 7.6-1
Page 31
