10 11.2011
QSF-60 Rev. 4
Procedure Prior to Starting Warranty Work
As a member of the Espar distribution organization, you are expected to stand behind your work.
This includes properly specifying and installing heaters and instructing your customers on the proper
operation and maintenance of the heater and all related components or accessories. All heater
technical manuals are available for download at Espar’s website (www.espar.com).
A. Before starting any warranty repairs on the heater, please check (as appropriate) the following
(as suggested in the Technician’s Checklist (Appendix E)):
1. Electrical System
a) Are connections tight and free of corrosion?
b) Has proper gauge wiring been used for the length and amperage requirements for that
wiring?
c) Have any fuses or circuit breakers been activated?
d) Is power taken directly from the batteries and ground to the batteries?
2. Fuel System
a) Have proper diameter fuel lines been used?
b) Have proper length fuel lines been used?
c) Has a proper connection to the fuel supply been made?
d) Is the fuel flowing or has it gelled?
e) Are there restrictions in the fuel line?
f) Is the fuel metering pump properly aligned?
g) Is the fuel filter clogged?
h) Has an Espar fuel pick-up pipe been used, and is it the proper length and diameter?
3. Coolant flow or Air Flow System
a) Are there any obstructions in the system?
b) Is the heater system too large (or small) for the application?
c) Has proper coolant hose size or ducting size been used?
4. Total operating hours to-date (with EDiTH diagnostics).
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