Owner`s manual

Hydro-Hot Hydronic Heating System Shop Manual 07/03
R
Section 7.3,
continue
d
Section 7: Troubleshooting
NOTE: Be sure to check that each fitting at the
Fuel Filter Head contains thread sealant. A
fitting without thread sealant could result in an
air leak. Be sure to clamp off both fuel lines at
the filter head prior to any fitting removal. If
fittings are removed and reinstalled, be sure to
remove the fuel line clamps prior to attempting a
heater restart. Failure to do so could result in
serious damage to the Diesel-Burner's Fuel
Pump.
2. Once the potential air leak has
been
discovered and corrected,
reattach the Hydro-Hot's Fuel
Retu
rn Line and attempt heater
restart. Does the Hydro-Hot's ex-
haust
system still sputter?
If
the exhaust system is still sputtering:
Perform
the air leak inspections
again, until all air leaks have been
discovered
and corrected.
Q6:
Is the Diesel-Burner's Control Unit func-
tioning properly?
In order to determine if the Control Unit is
functioning properly, reference Section 8.11
and
perform the Control Unit's "Component
Test".
A: If the Control Unit is not functioning
properly:
Th
e Control Unit must be replaced,
reference Section 8.11 for replace-
ment
instructions.
If
the Control Unit is functioning properly:
Continue Troubleshooting.
Q7:
Is the Diesel-Burner's Ignition Coil func-
tioning properly?
In
order to determine if the Ignition Coil is
functioning
properly, reference Section 8.10
and perform the Ignition Coil's "Component
Test".
A: If the Ignition Coil is not functioning prop-
erly:
Th
e Ignition Coil must be replaced,
Section 7.3,
continue
d
Page 24
reference Section 8.10 for replace-
ment
instructions.
If the Ignition Coil is functioning properly:
See the "NOTE" below.
NOTE: If the Hydro-Hot still does not ignite
after several starting attempts and all of the
listed
checks were performed, contact our
Technical Department at 1-800-685-4298 for
additional assistance.
Ignition
Electrodes
Photo Disc
Flame Sensor
Fuel Pump
Fuel Solenoid
Fuel
Nozzle
Control
Unit
Ignition Coil