The heater is equippedwith self diagnostic capability.You
can retrieve information on the heaters last 5 faults using the
Espar multifunction timer or Espar’s Fault CodeRetrieval
Device.
Multifunction
Espar’smultifunction timer has a fault code retrieval device
built into the unit.This function automatically activates if the
heater is experiencing problems.
• Fault codes appear on the LCD display screen.
• Codes can then be translated from the charts on the
following pages.
Fault CodeRetrieval Device
Equipment Face andControls
Symbols seen on the display
face are as follows:
AF
Actual fault.
F1-F5
Up to five stored faults can be accessed.
The AF and F1 are the same number.
This sign is displayedwhen the heater is in
operation.
DIAG
Theword (Diagnostic) will come onwhen the
diagnostic number is requested.
000
Three digit diagnostic fault code number.
Instructions:
• Connect as shown on following page.
• Switch the fault code retrieval device on andwait
10 seconds.
• Press the "D" button.
• Wait 3-5 seconds for the current fault code to appear
(AF).
• To review the previous faults use the arrow buttons
(F1=Most Recent, F5=Oldest).
• To erase the faults that are inmemory press both "L"
keys at the same time.
• See the fault code chart on following pages for code
number descriptions.
24
Maintenance / Troubleshooting / Repair
• Check coolant hoses, clamps, andmake sure all valves
are open.Maintain the enginemanufacturers recommend-
ed coolant level and ensure that the heater is properly
bled after service on or involving the coolant system.
• Visual check of all fuel lines for leaks.Check and if
necessary replace fuel filter inserts.
• Visual check of electrical lines and connections for
corrosion.
• Run your heater at least once amonth during the year
(for aminimum of 15minutes).
• Maintain your batteries and all electrical connections in
good condition.With insufficient power the heater will
not start. Low and high voltage cutouts will shut the
heater down automatically.
• Use fuel suitable for the climate (see enginemanufactur-
ers recommendations). Blending used engine oil with
diesel fuel is NOT permitted.
• Check the glow pin and replace if necessary.
BasicTroubleshooting
In the event of failure there are several items which
should be checked first before anymajor troubleshooting
is done.
Check:
• Circuit breakers and fuses.
• Electrical lines and connections.
• For interference in combustion air and exhaust pipes.
• That there is fuel in the tank.
• Battery voltage.
Troubleshooting
PeriodicMaintenance
Self Diagnostics
