Intertek FT Series - SECTION 7 Trouble Shooting Diagnostics

The FT Series Floor Standing, Heating Only Boiler
Page 75
Question Answer
The blower is still oper-
ating after the combus-
tion stops.
This is normal because the blower keeps operating for 1 minute to vent (exhaust) the
ue gas from the chamber once the combustion has stopped.
Temperature Rise
too Quickly
Occurs when supply water temperature in heat exchanger rises faster than 2°F per
second during the rst two minutes the burner is on. Automatically resets after a
few minute delay or using manual reset on control panel. See message displayed
TEMPERATURE SENSOR and follow procedure for loose connections.
Abnormal sounds come
from unit during opera-
tion.
A leak of combustion gas between sealed chamber and exhaust tube inside the unit.
Call a qualied service technician for evaluation.
Improper venting termination, make sure that the venting termination complies with
specication.
Check the supply gas pressure is su󰀩cient. Insu󰀩cient gas pressure will cause unstable
burner ame and noise.
CH Temp drops lower
than expected before unit
re-res
Change Parameter 17:bo to 10 degrees F (5.5 degrees C)
SECTION 7 Trouble Shooting
7.1 Diagnostics