4
VISUAL INSPECTION
10
TYPICAL NON-WARRANTABLE REPAIRS
1. FUEL FILTER
a. The fuel lter can be found on the inlet side of the fuel pump, see page 32.
If this lter is plugged or partially plugged it can cause a no-start to your
heater. The lter can be serviced by using a backing wrench and turning
the inlet cap off the pump. Then use a small pick to pull the lter out to
be replaced.
b. This lter may cause the heater to smoke during start-up and smoke
during operation.
c. This lter can cause your heater to over fuel due to repetitive start attempts.
d. Common codes associated with a fuel lter: 50 – 56.
2. ATOMIZER SCREEN
a. This screen surrounds the glow pin and is found when the glow pin is removed
3. OVERHEAT AND ASSOCIATED FAILURES (Code 12,14 &15) are normally
non-warrantable failures
4. PLUGGED OR RESTRICTED COMBUSTION INTAKE AND/OR EXHAUST PIPING
5. CARBONED BURNER CHAMBER – these are non-warrantable unless caused
by a primary failed part covered under a warrantable failure situation.
a. Caused by a restriction of intake or exhaust.
b. Caused by improper angle of fuel pump, pump must be 15 – 35 degree
angle up with the outlet / harness connection being on the high side.
c. Fuel system that has had improper amount of additives injected into the tank.
d. Fuel system with any kind of oil being used in the fuel.
e. Short cycling caused by improper application or electrical power
connections.
6. MODIFIED PARTS DURING REMOVAL OR REPAIR WHILE UNDER WARRANTY
Any place where the integrity of the part has been compromised during the
repair will not be covered under warranty. If any part must be modied to
remove or service - cut wires, broken housings, damaged parts – or a harness
or a connector must be repaired in any way, the Espar Warranty Department
must be contacted and a WA# rst obtained. 1-800-387-4800
REVISION LEVEL A - 09/09/15
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