Display message F a n s p e e d i n c o r r e c t
F11 p u m p o n 9 9 9 , 5 h r s
Reason Actual fan speed differs from the unit rpm setpoint.
Cause:
An incorrect fan speed is detected.
Corrective Action:
Check the 4 wired fan control wiring and connections at the fan and at the main control board.
Check the 3 wired power supply wiring and connections at both ends.
Replace the fan.
Replace the main control board.
Display message p r o g r a m m i n g e n d
F12 p u m p o n 9 9 9 , 5 h r s
Reason Programming of the parameters completed successfully.
Cause:
Programming of the parameters completed successfully.
Corrective Action:
Display message P a r a m / H a r d w f a u l t
F13 p u m p o n 9 9 9 , 5 h r s
Reason Failure during programming of the parameters.
Cause:
Programming of the parameters NOT successfully completed.
Corrective Action:
Check the PC interface cable and connections and try parameter programming again.
Check if the software version is correct for the burner control PCB.
Replace the PC interface cable.
Replace the display PCB.
Display message C l i x o n F a u l t
F15 p u m p o n 9 9 9 , 5 h r s
Reason: Heat exchanger fuse exceeded maximum value.
Cause:
The heat exchanger thermal fuse has opened permanently.
Corrective Action:
Isolate the electrical power and gas supply to the boiler and contact Lochinvar Limited for further guidance.
Display message W a t e r h i g h l i m i t
F17 p u m p o n 9 9 9 , 5 h r s
Reason: High-temperature limit thermostat has exceeded the limitation value.
Cause:
The water flow is restricted.
Corrective Action:
Check for correct operation of the integral pump.
Check that all valves that may restrict the water flow through the boiler are fully open.
Ensure that any strainers installed in the primary circuit are free from debris.
Check for an external system pump that influences the flow through the unit.
Check if the system resistance exceeds the spare capacity of the integral pump.
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