Maintenance

CHECKLIST FOR KEEPING THE HEAT ON
WARNING: This work must be performed by a qualified service or maintenance technician.
GENERAL MAINTENANCE
Check equipment for any physical damage that may
have occured over the summer. This should include
damage to sheet metal, fans and air movers, wiring,
gas pipes, vent systems, and equipment supports.
Look for cleanliness of heat exchanger and burners.
Check to make certain the vent system has not been
compromised and is in the proper working order.
Check for obstructions that may be blocking the air inlet
or discharge paths of the heat exchanger.
GAS SUPPLY
Check to make sure that gas mains are turned on.
Check inlet pressure and manifold gas pressure to
heating equipment to make sure it is properly set.
Check gas regulators to be certain regulator vents are
not plugged.
If propane is being used, check main regulator on tanks
for proper pressure settings and check for damage to
regulators.
Check propane tanks for proper size and liquid
propane levels.
GAS CONTROLS
Inspect all gas connections for good tight fits.
This includes pipe connections to the equipment as
well as pilot tubing connections at the gas valve and
at the pilot burner.
Inspect the main burner gas orifices to make sure they
are not blocked with spider webs. Check pilot orifice for
obstructions if pilot cannot be lit or will not stay lit.
After visual and physical inspection of the gas
connection, turn on the gas and check for gas leaks
using a water/soap solution.
Do not check for gas leaks with an open flame.
Check electrical connections to gas valve.
Check thermocouple, pilots, flame sensors,
ignition cables, etc. for cleanliness and tightness
of connections.
AIR MOVERS
Lubricate motor bearings if they are not the
permanently lubricated type.
With the power turned off, check to see that the motor
shaft turns freely and does not bind. This can be done
by rotating the fan or blower wheel by hand.
Inspect the fan or blower wheel to make sure they are
not damaged or binding.
Check to make certain fan is not loose on motor shaft.
If blower units are used, make certain the blower and
motor pulleys are secure.
On blower units, check for proper belt tension and also
look for signs of belt wear.
Check power connections to motor to ensure they
are secure and have not vibrated loose over the past
heating seasons.
Note: Equipment using belt drives should have the belt tension
checked on initial start-up. Periodic inspection should be made
during the heating season to ensure continued proper operation.
CONDENSATE REMOVAL & DISPOS. SYSTEMS
If the units are gas-fired condensing units,
check the following items:
Make sure the condensate lines are clear of
obstructions and free flowing.
Assure the condensate drain line “P” trap has been
primed and filled with water.
Check the condensate overflow switch to make sure it
is working properly.
If the unit(s) has been provided with a condensate
removal pump, check to make sure the pump is working
properly and has not been damaged.
THERMOSTATS
Check for general cleanliness.
Check wiring to and from thermostat.
Check thermostat for proper temperature setting.
76-500P | October, 2017