Laars MASCOT LX, Руководство по обслуживанию

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24
Mascot LX Service Manual
• Check the switch function and replace the switch if necessary. See Section
B19.
• If this does not restore normal operation, replace the SIT control board. See
Section B30.
E008 – Field interlock error
• This indicates a problem with the control circuits outside the boiler.
• If the external circuits are OK, but the boiler does not restore normal operation,
replace the SIT control board. See Section B30.
E009 – Blocked vent switch
There has been a lockout because the controller did not detect a normal airflow
through the system.
• Check for a blockage in the vent.
• Check the wiring to the air pressure switch. See Section B12.
• Check the function of the switch. Replace the switch if necessary.
• If this does not restore normal operation, replace the SIT control board. See
Section B30.
E010 – Blocked vent/ fan proving switch error
There has been a lockout because the controller did not detect a normal airflow
through the system.
• Check for a blockage in the vent.
• Check the wiring to the air pressure switch. See Section B12.
• Check the function of the switch. The system will present this error if the switch
is open (not enough air moving through the unit.) See Section B12 for instruc -
tions. Replace the switch if necessary.
• If this does not restore normal operation, replace the SIT control board. See
Section B30.
E011 – Flame loss lockout
There has been a lockout because the controller detected three consecutive flame
losses while the unit was trying to run.
• Check the wiring to the flame sensor. See Section B16.
• Remove and clean the flame sensor. Replace it if necessary. See Section B16.
• Check the wiring to the gas valve. See Section B13.
• Check for possible problems with the gas supply.
• If this does not restore normal operation, replace the SIT control board. See
Section B30.
Lockout Codes (continued)
A2