Laars MASCOT LX, Service Manual

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Mascot LX Service Manual
E012 – Lockout due to three consecutive failed ignitions
• Check the wiring to the flame sensor.
• 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.
E013 – Flue high temperature
The flue sensor reported a temperature above 195°F.
• Check for a blocked flue.
• Check the wiring to the flue safety sensor. See Section B8.
• Check for correct switch function and replace the switch if necessary.
• If this does not restore normal operation, replace the SIT control board. See
Section B30.
E014 – Outlet high temperature (manual reset high limit)
• Check for a blocked flue.
• Check the wiring to the outlet water temperature sensor. See Section B4.
• An E014 error indicates that the system has reached the high limit and locked
out. Did the system actually get that hot, or is there a problem with the sen -
sor? Replace the sensor if necessary.
• If this does not restore normal operation, replace the SIT control board. See
Section B30.
E015 – Flue sensor drift too high
The sensor used here is a dual sensor. The controller compares the signals from
both sensors, and triggers an error if the difference between the two (the “drift”) is
too great.
• Check the wiring to the sensor. See Section B8.
• Replace the sensor if necessary.
Lockout Codes (continued)
A2