Owner`s manual

Hydro-Hot Hydronic Heating System Shop Manual 07/03
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Heating Zones
Status
#5
#4
#3
#2
#1
Electric Heating
Element Status
Low
Voltage
Reset
Emergency
Cutoff
Hydro-Hot
Heating Status
Engine Preheat
Pump
Electronic
Controller
Low Battery
Voltage Fault
Low
Temp
Cutoff Status
Overload Fault
Circulation
Pump #2
Circulation
Pump #1
Stir Pump
Diesel-Burner
Status
TM
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Section 7: Troubleshooting
Page 29
2. Once the potential air leak has
been discovered and corrected,
reat
tach the Hydro-Hot's Fuel
Return 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.
NOTE: If the Hydro-Hot's exhaust system still
produces white smoke after performing all of the
listed
checks, contact our Technical Department
at 1-800-685-4298 for additional assistance.
After turning the Diesel switch ON:
TS6
: The Hydro-Hot's exhaust system pro-
duces black smoke after ignition.
Q1: 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 Q2.
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
necessary.
Section 7.6
By Vehicle Systems
Diesel
Electri
c Engine
Preheat
Diesel-Burner’s
Indicator
Light
TM
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Electronic Controller
Faceplate
Section 7.6,
continue
d
Section 7.5,
continue
d