PRELIMINARY HEATER TROUBLESHOOTING CHECKLIST
If you are unsure of the cause of your heater problem, certain things which can cause
problems can be checked before proceeding with the PROBLEM DETERMINATION in this
section. You should ensure that:
The incoming power is connected properly and is the correct voltage.
The main circuit breaker in the panel box is "on" and not in the "tripped" position.
This can be determined by turning the breaker off and then back on.
The control circuit breaker located in the panel box is "on" and not in the "tripped"
position. This can be determined by pushing the reset button in.
The fuel supply is connected properly, all manual valves and cocks are open and,
on combination units, the fuel selector switch is positioned correctly.
The time clock settings are correct.
The circulating pump motor and burner motor are rotating in the correct direction.
All terminal connections and screws in the panel box are tight.
All items listed in SECTION 8: HEATER PREVENTIVE MAINTENANCE have been
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