IBC SL 10-85 G3 User Manual

8.3.3 Miscellaneous issues
Miscellaneous issues
Issue Diagnosis Fix
Fumes and High Humidity Improperly
installed
condensate
trap
Refer to installation/operation
instructions.
Leak in vent
piping
Inspect using soap solution.
Flue gas leak
within boiler
Visually inspect all mechanical
connections.
‘Ghost’ call for heat. Triac or
‘Power-
robbing’
thermostat
sending
current to
boiler.
Remove Therm. connections from
boiler to confirm that stray voltage, or
current induced in thermostat wiring, is
source of nuisance signal. Replace the
Power Robbing thermostat, isolate the
thermostat with a relay or install a
properly sized resistor (consult the
thermostat manufacturer first then IBC
for instructions).
Error: Water High Limit / Low Water
Cutoff won’t clear.
Boiler is in 1-
hour safety
lockout.
For instructions on clearing errors, see
the V10 Touchscreen Controller
manual.
DHW taking too long to heat. Sensor may be
under-reading
actual water
temp.
Check sensor engagement; note well is
15 cm / almost 6 inches deep and
sensor must be fully set to back. Check
programmed settings boiler temp set
too close to the required DHW
temperature.
Boiler output not modulating up to
maximum despite target not being
reached.
Possible flow
issue: check
for 35 or 40 °F
temperature
difference
between boiler
supply and
return water
temperatures
(evokes
electronic
fence).
Confirm that the boiler pump is able to
overcome head loss of boiler and
primary loop piping at the required flow
rate.
98
Section: Troubleshooting

IBC SL 10-85 G3 Specifications

General

Brand	IBC
Model	SL 10-85 G3
Category	Boiler
Language	English