Froling FHG, Руководство по эксплуатации и обслуживанию

Страница: 48 / 54

Troubleshooting
Page 48
B0600008_US
v
6
6.3.1 Acknowledging a error message
Trace and remove the error cause and then:

Press Enter Key (6.3)
 Status LED flashes green
6.3.2 List of possible error message
Error number /
Error message
Error information text /
Cause of Error
Troubleshooting
0 Hi-limit or e-stop
activated!!
Overheat Thermo-
stat (STL) or
EMERGENCY OFF
activated  The boiler has overheated through
strong reduction in heat consump-
tion
 Customer switches for heating or
circulators (pumps) outside Boiler
Control System were switched off
 Circulator (pump) suddenly stops
 Slide valves, cut-off valves, flow-
check valves or zone-valves closed

Overheat Thermostat automatically
has been activated:
Reset Overheat Thermostat (STL)
after the boiler has cooled down
Refer to 6.2 Excessive temperature

Check switches for heating or circu-
lators (pumps) outside Boiler Con-
trol System

Check circulator (pump)

Reopen slide valves or cut-offs,
check flow-check valves or zone-
valves
1 Boiler temperature
sensor faulty  Sensor signal incorrect

Check sensor; ask a licensed elec-
trician to check sensor cable and
connections
2 Primary air damper
blocked  Deviation of more than 5% be-
tween position and control signal
for more than 5 minutes
 Actuator not turning
 Actuator incorrectly fitted
 Incorrect direction of rotation
 Movement of damper impeded
 Connection cable defective

Check actuator and mechanics

Ask a licensed electrician to check
actuator cable and connections

Correct assembly: the damper
must be closed at primary air signal
0%

Ask a licensed electrician to swap
connections for "open" and "close"
at plug within Boiler Control Sys-
tem

Check to see if damper is jammed

Ask a licensed electrician to check
actuator cable and connections
6.3