DOC2012/2000en
If there is
insufficient water flow
the boiler will turn off and lock- out. Red lamps 2 and 5 on.
Reset by pushing button 3
If the flow temperature exceeds the
high limit
setting, the boiler will mechanically lock out and red
lamp 2 illuminates. Reset by pushing button 3 and allow the unit to fire. If lamp 4 TA then illuminates,
reset button in high limit thermostat.
Remove the two screws at the top of the upper right hand panel.
Remove the panel by lifting up. Remove the high limit thermostat cap nut (see sticker high limit thermo-
stat) with a 17 mm ring spanner. (See fig. 19)
Press a screwdriver against the green peg until a light click is heard. Lamp 4 turns off.
Refit capnut. Refi tupper right hand panel and fasten the two top screws. Then press button 3 to reset
red lamp 2 (CA).
If an ionisation interruption occurs, red lamp 2 will light, burner will be off.
Reset by pushing reset button 3.
The pilot flame on the main burner can be observed through the sight glass on the lower right
hand side of the boiler (see pos. 12, fig. 2).
7.4 Fault indications
Fig. 23 Additional control panel to the EM version with weather compensation
including clock for night-time temperature reduction
38
Summary of Contents for R2000 Series
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