Thermo Pride OMD-70 - Manual (Page 35)

All installations and services must be performed by qualified service personnel.
V. DEALER MAINTENANCE
THIS SECTION IS ONLY TO BE PERFORMED BY TRAINED, QUALIFIED SERVICE
PERSONNEL, AND NOT BY THE FURNACE OWNER.
A. TROUBLESHOOTING
Note: Check diagnostic code through view port prior to removing doors.
: When testing electrical equipment, always follow standard electrical
procedures and precautions.
1. Check for line voltage (110-120VAC) to the furnace. If there is no line voltage applied
to the furnace, check that disconnecting switch is “on”, fuses or circuit breakers have not
blown or tripped.
2. Make sure thermostat is “calling for heat”.
3. Check for adequate fuel supply and pressure. Are all the fuel shutoff valves are open?
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