Hydro-Hot Hydronic Heating System Owner’s Manual 08/04
®
Page 9
SECTION 5: TROUBLESHOOTING
5.1 General Information
If the Hydro-Hot’s Diesel switch
“Indicator Light”
does not illuminate, and
the Diesel-Burner is not functioning
,
locate the Electronic Controller
(Figure
5)
and check the following:
A.
Check the Hydro-Hot’s Electronic Controller for any RED lights indicating
a fault condition. Reference
Figure 5
and the Electronic Controller
Troubleshooting section to identify these fault conditions.
B.
Check for loose wire connections on the Electronic Controller’s Plug
terminals. When checking for loose plug terminals, remove the Electronic
Controller Faceplate by unscrewing the four cover screws.
C.
Remove the Hydro-Hot’s Access Cover and check for loose plug connec-
tors on the Diesel-Burner's Control Unit (located on the under side), see
Figure 1A
.
D.
Check to ensure that the vehicle’s fuel tank has a sufficient level of fuel.
E.
If your Hydro-Hot still fails to operate, please contact our
Technical
Support Department
at
1-800-685-4298
for additional troubleshooting
assistance or visit our website at
www.hydro-hot.com
.
General
Information
5.2 Electronic Controller Diagnostic
#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
������ ���
R
Electronic
Controller
Figure 5
