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Manual 2100-422
Page 32
PUMP SQUEALS OR CHATTERS
This may be caused by air in pipes. Check all joints in
the oil supply pipe for leaks. Check strainer in pump; if
dirty, clean.
INSUFFICIENT HEAT
Check limit control setting. It may be that flame is not
allowed to stay on long enough to generate sufficient
heat in furnace to heat the house properly. If the proper
size furnace has been selected according to house
requirements and satisfactory heat is not obtained,
recheck the heating plant for size and capacity in
relation to house. Check for clogged filters.
Check and make sure the heat anticipator on the
thermostat is set correctly.
CARE OF FINISH
This furnace cabinet is made with a very durable and
corrosion resistant finish. With normal cleaning it will
last for many years.
CLEANING OF THE HEAT EXCHANGER
All of these units have four clean out plugs for easy
cleaning of the heat exchanger. They are accessible
from the front and back of these units by removing the
clean out access cover in the burner compartment and at
the back of unit. The furnace should be checked
annually by a qualified service technician.
WARNING
Under no circumstance should a soot
deterioration device be used in the
combustion chamber. These products known
as “soot busters” or “soot sticks” are
comprised of chemicals that burn at very high
temperatures which may exceed the
temperature rating of the combustion chamber
material.
Use of these products are detrimental to the
life expectancy of the combustion chamber
and will destroy the chamber. Refer to the
“Cleaning of Furnace” section for proper
cleaning methods.
COMMON CAUSES OF TROUBLE
CAUTION
To avoid accidents, always open main switch
(OFF position) when servicing the burner.
BURNER WILL NOT PRODUCE FLAME
Check oil level gauge to see that there is sufficient oil in
tank or tanks. Check the burner mounted relay control.
Do not adjust this control.
Check position of electrodes – incorrect position will
cause slow or delayed ignition. Clean electrodes and
nozzle. Check and clean strainer in pump. If oil line
filter is used, check filter condition.
If burner runs but there is no flame the fuel pump may
be air bound. Follow instructions for bleeding fuel
pump.
Check and make sure the solenoid valve on the oil
pump is being energized and opening.
BURNER STARTS OR STOPS TOO OFTEN
Check heat anticipator setting on thermostat.
NOZZLE PRODUCES A STRINGY FLAME
Worn tangential grooves in nozzle. Replace nozzle.
BASEMENT TANK HUM
Occasionally with a two-pipe installation there may be
a low return line hum. Eliminate hum by installing a
special anti-hum valve in the return line near pump.
HEAVY FIRE OR PULSATING FLAME.
These may occur after burner starts. It may be caused
by a slight oil leak in the fuel pump and cannot be
corrected except by replacing the pump. This happens
only when the burner is started.
CHATTERING SOUND OR HIGH PITCH NOISE
This noise from motor can usually be traced to where a
conduit or BX cable is fixed rigidly or attached to some
part of the building. Relieving this strain may eliminate
noise.
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