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Form: 2435
Revision: 9
Free Flex Installation and Operation Manual
Date: 9-1-2017
Bryan Steam LLC, 783 N Chili Ave, Peru IN 46970
Web:
www.
bryanboilers
.com
Phone:
765-473-6651
Fax:
765-473-3074
Email:
45
5.7
Troubleshooting
Refer to the troubleshooting section in the Concert Boiler Control manual on how to navigate the
Limit String Status screen that shows an active safety limit status and for an in-depth guide to all the
possible lockouts as well as recommended corrective actions for restore boiler operation.
Table 17: General Troubleshooting
INDICATION
POSSIBLE CAUSE
CORRECTIVE ACTION
Boiler is not
responding to a call
for heat, “Status” and
“Priority” show
“Standby”.
Boiler is not seeing
Enable/Disable of
Domestic Demand
Input.
Check wiring for loose connections or wiring
errors. If Domestic Demand is expected check
the DHW Demand/Modulation is selected
properly.
Boiler is not
responding to call for
heat, “Status” shows
“Standby” and
“Priority” shows
Central Heat or
Domestic Hot Water.
Boiler is not firing, or
temperature is greater
than setpoint.
Select display Help icon and review Limit
String Status.
Boiler is Running but
System or Boiler
Circulator is not
running.
Pump Not Running.
Check wiring for loose connections or wiring
errors.
When there is a Domestic Hot Water Heat
Request the System or Boiler Pump will be
forced “off” when their “Run Pump for”
parameter is set to “Central heat, off DHW
demand” or “Central Heat, Optional Priority”.
This has been set to allow all of the heat to be
provided for fast indirect water heater
recovery. After “Priority protection” time or
the end of the Domestic Hot Water Heat
Request the system and boiler pumps will be
free to run.
Display Completely
Dark Fun off, LWCO
lights off, no green
power light on
Control.
No 120 Vac Power at
Boiler due to blown
high voltage fuse or
circuit breaker trip.
Check breaker and wiring between breaker and
boiler.
Replace blown high voltage fuse.
Reset tripped breaker.