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Errors


Boiler type Trinity Lx700

Error code Lockout 79

Cause:

1. CH or DHW settings
2. CH or DHW pump problem
3. Incorrect “Outlet high limit” setting

Solution:

1. Check if CH and/or DHW setpoint temperature plus off hysteresis exceed “High limit” setpoint – factory setting = 210°F (99°C).
2. See "Inoperative CH or DHW pump" below.
3. Increase “Outlet high limit” setting; maximum setting = 210°F (99°C).