6 Draught Control
04.09.2016 Mk8 MM Expansion Features Installation and Set-Up Guide Page 111
6.5 Faults
The table below show the faults which are directly related to the draught control function. For the full
list of faults including errors, lockouts, alarms, warnings, setting conflicts and forced commission
reasons, please see section 4 in the Mk8 MM Installation and Commissioning Guide.
Fault Message Description Type
400 Draught Pressure Sensor
Timeout
No comms within 2 seconds from
draught pressure sensor
Alarm/Warning –
option 88
Check wiring and screen on terminals DT+, DT-, DP- and DP+
Warning if expansion option 88 is set to 1
410 Draught Pressure Outside
Tolerance
Pressure is outside of set tolerance Alarm/Warning –
option 88
Check expansion option 87
Check draught air pressure sensor