Technical data

54
STRATA1
22. Screen display/
Diagnosis of faults
22.1 Screen display
The control panel of the Strata 1 boiler has an LCD screen, displaying two lines of data. This screen
provides information about the operation of the appliance; it shows operation messages (non flashing) and
fault messages (flashing display). The first line contains text information about the status of the unit.
It shows:
STATUS MESSAGES (NON FLASHING) FOR NORMAL OPERATION
Standby No heat demand (boiler not required to be on)
Pre-purge Combustion chambers are being pre-ventilated with air from the burner fans
Ignition The ignition sequence of the burners is initiated
Heat-operate The boiler is operating in central heating mode
Tap-operate The boiler is operating to produce domestic hot water
Flue-emission The boiler is operating in test mode at mid output to enable flue gas emissions to be
checked (auto expires after 10 min)
10 min Low The boiler is operating in engineers test mode for adjustment purposes (auto expires
after 10 min)
Post-purge Combustion chambers are being post-ventilated with air following boiler operation
Limit F/R The flow and/or return temperature is too high (currently)
Fan 1 high The lower burner fan is running too fast (currently)
Fan 1 low The lower burner fan is running too slow (currently)
Fault room u There is a fault with the modulating unit (RE132) or Cascade manager (KKM2) or a
fault in the wiring to these controls (in the case of the RE2132 the boiler runs
continuously in heating mode to protect the building)
Fault outsid There is a fault in the outside air sensor or in the wiring to the sensor or the dip
switches are incorrectly set to ask the boiler to look for an outside sensor when there
is none installed
Service The service interval time has expired and the boiler should now be maintained
Serv. Button The service button is being depressed
Fan 2 high The upper burner fan is running too fast (currently)
Fan 2 low The upper burner fan is running too slow (currently)
Venting The in built pumps are operating to remove any possible collection of air from the heat
exchangers. (Occurs when power turned off/on and after reset of fault)
The second line of text displays values such as temperature, percentages etc and the red reset button may
be used to scroll through (for information) the values of the various sensors that are/may be connected
in the boiler plus fan speeds and pump speed etc.