Aqua-Hot™ Hydronic Heating System Owner’s Manual 07/04
SECTION 6: TROUBLESHOOTING
6.1 General Information
If the Aqua-Hot’s Diesel switch
“Indicator Light”
does not illuminate and the
Diesel-Burner is not functioning, locate the Electronic Controller
(Figure 6)
and check the following:
A.
Check the Aqua-Hot’s Electronic Controller for any RED lights indicating a
fault condition. Reference
Figure 6
and the Electronic Controller Trouble-
shooting section to identify these fault conditions.
B.
Check for loose wire connections on the Electronic Controller’s Terminal
Strips/Plugs. When checking for loose Terminal Strips/Plugs, remove the
Electronic Controller Faceplate by unscrewing the four cover screws.
C.
Remove the Aqua-Hot’s Access Cover and check for loose plug connec-
tors on the Diesel-Burner's Control Unit (located on the under side);
reference
Figure 1.
.
D.
Check to ensure that the vehicle’s fuel tank has a sufficient level of fuel.
E.
If your Aqua-Hot still fails to operate, please contact the
Technical Sup-
port Department
at
1-800-685-4298
for additional troubleshooting assis-
tance or visit our website at
www.vehiclesys.com.
.
General
Information
6.2 Electronic Controller Diagnostic
SECTION 6: TROUBLESHOOTING
Electronic
Controller
Figure 6
#5
#4
#3
#2
#1
Electric Heating
Element Status
Low Voltage
Reset
Low Tank-Level
Cutoff
Heating Status
Engine PreHeat
Pump
Low Battery
Voltage Fault
Low Temp
Cutoff Status
Overload Fault
Pump #2
Pump #1
Pump #3
Diesel-Burner
Status
Heating Zones
Status
ELECTRONIC CONTROLLER
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