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VII. TROUBLESHOOTING:
THIS SECTION IS ONLY TO BE PERFORMED BY TRAINED, QUALIFIED SERVICE
PERSONNEL, AND NOT BY THE FURNACE OWNER.
NOTICE: Before troubleshooting, familiarize yourself with the Initial Startup,
Checkout Procedure, and Troubleshooting Flowchart.
Refer to the appendices of this manual for an electrical schematic, a connection diagram, flowcharts to
assist in troubleshooting, product specifications, and a replacement parts list follow for this appliance.
1. Check for 115VAC line supply voltage to the furnace. If there is no supply voltage, check fuses and
service switch.
CAUTION: When testing electrical equipment, always follow standard electrical procedures.
2. Make sure thermostat is calling for burner operation.
3. Check oil supply and make sure all valves are open.
The troubleshooting chart beginning on the following page should help identify the type of malfunction or
deviation from normal operation. To use this diagram, just follow the instructions in the boxes. If the
answer is yes or the condition is true, go down to the next box. If the answer is no or the condition is
false, go to the box on the right. Continue checking and answering questions and conditions in each box
until a problem and/or repair is found. After any maintenance or repair, the trouble shooting sequence
should be repeated until normal system operation is achieved.