Thermo Products 36)- 80 User Manual

Page of 91
All installations and services must be performed by qualified service personnel. 
 
VI. DEALER MAINTENANCE 
 
SAFETY DURING SERVICING AND INSPECTION 
 
: Personal injury or property damage could result from repair or 
service of this appliance by anyone other than a qualified heating contractor. 
The user may only perform the activities described in the Homeowner/User 
Routine Maintenance section of this manual.
 
 
: To avoid injury from moving parts, or electrical shock, shut off the 
power to the appliance before removing blower compartment door and 
servicing this appliance.
 
 
:  When servicing controls, label all wires prior to disconnecting. 
Reconnect any removed wires correctly. Wiring errors can cause improper 
and dangerous operation. Dangerous operation can result in injury or damage.
 
 
IMPORTANT:  Verify the proper operation of this appliance after any servicing 
is performed.
 
 
A qualified heating contractor should perform the following maintenance 
procedures at the beginning of each heating season. Correct any deficiencies at 
once.
 
 
A. General Inspection 
 
:  Shut off oil and disconnect power before continuing w/ this 
inspection. 
 
1.  Vent terminal - Visually inspect the terminal for restrictions, loose or missing 
fasteners, external damage, and carbon build-up. Clean the vent terminal and the 
screen(s) covering any opening in the terminal. Repair any minor damage. If 
necessary, replace a severely damaged or degraded vent terminal. 
 
2.  Burner – Visually check the burner, and below the burner, for indications of oil 
leaks. Correct any, if found. Remove the burner and measure the ignition 
electrode gap. It should be set to 5/32 inch. Adjust it, if necessary. Clean any 
accumulation of dust, dirt, or debris from the air shutter or air band openings. If 
necessary, clean housing and blower wheel with a damp cloth. Use a vacuum to 
remove any lint or dust from motor assembly. Add a few drops of non-detergent 
oil to each of the motor lubrication holes. 
  
3.  Combustion Chamber - Inspect the liner for deterioration, oil and carbon build-up. 
If the accumulation of oil or carbon is significant, this is a strong indicator that the 
burner is out of adjustment. Inspect the burner nozzle for partial blockage and 
45