Users Guide

6
Monthly Maintenance
Monthly Maintenance
Check Vent Piping
• Visually inspect the flue gas vent pip-
ing for any signs of blockage, leakage
or deterioration of the piping. Notify a
qualified service technician immediately
if any problems are found.
WARNING!
FAILURE TO INSPECT THE VENTING SYSTEM
AS NOTED AND HAVE IT REPAIRED BY A QUALI-
FIED SERVICE TECHNICIAN CAN RESULT IN
THE VENT SYSTEM FAILURE, CAUSING SEVERE
PERSONAL INJURY OR DEATH.
Check Combustion Air Inlet Piping
• Visually inspect the combustion air inlet
piping for any signs of blockage. Inspect
the entire length of the combustion air
inlet piping to ensure piping is intact and
all joints are properly sealed.
• Notify a qualified service technician if
any problems are found.
Check Pressure Relief Valve
• Visually inspect the primary pressure
relief valve and the relief valve dis-
charge pipe for signs of weeping or
leakage.
• If the pressure relief valve often weeps,
the expansion tank may not be oper-
ating properly. Immediately contact a
qualified service technician to inspect
the unit and system.
Check Vent Condensate Drain System
• While the unit is running, check the dis-
charge end of the condensate drain tub-
ing. Ensure no flue gas is leaking from
the condensate drain tubing or tee con-
nection by holding your fingers near the
opening.
• If you notice flue gas leaking from the
opening, this indicates a dry conden-
sate drain trap. Fill the condensate trap
assembly. Contact a qualified service
technician to inspect the unit and con-
densate line and refill the condensate
trap if problem persists regularly.
WARNING!
UNDER SOME CIRCUMSTANCES THE ESTEEM
MAY NOT PRODUCE ENOUGH CONDENSATE TO
KEEP THE CONDENSATE TRAP FULL OF LIQUID.
I
F THE TRAP IS NOT FULL, SMALL AMOUNTS
OF FLUE GASES CAN BE EMITTED INTO THE
SURROUNDING AREA THROUGH THE CONDEN-
SATE DRAIN LINE OR TEE.
GF-125U