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Air Flow Monitor
1. The boiler is fitted with an air pressure sensing
device. This monitors the flue system.
2. If the (
) neon illuminates it indicates that the
flue or flue terminal is blocked or obstructed in some
way, or that there is an internal fault. If there is no
external blockage of the flue terminal that can be
easily removed contact your Installer or Service
Engineer (Fig. 11).
Pump Fault or Low Pressure
1. The neon (
) will illuminate if the circulating
pump is faulty or the system pressure drops below the
minimum requirement (Fig. 11).
2. Check the pressure gauge as described on page 8.
If the pressure is in the normal range, a pump fault is
indicated. Contact your Installer or Service Engineer
to determine the nature of the fault.
Sensor Fault
1. When either of the the (
fault on one of the temperature sensors is indicated
(Fig. 11). Contact your Installer or Service Engineer.
Pump Protection
1. With the selector switch in the on position (Fig. 12)
the pump will automatically operate for 1 minute in
every 24 hours to prevent sticking.
Safety Thermostat
1. Your Potterton Performa System HE is fitted with
an additional safety devices, which shut down the
boiler in the event of the system, boiler or flue
overheating. The safety thermostat neon (
light in this instance (Fig. 11).
2. To reset: Turn the selector fully anti-clockwise
against the spring pressure to the 'Reset' position for
at least two seconds and release (Fig. 12).
3. If after turning the selector to the 'Reset' position
the boiler does not relight or the safety thermostat
operates repeatedly, causing boiler shutdown, a fault
is indicated. Your Installer or Service Engineer should
be contacted as soon as possible.
Publication No. 5111818
Safety Thermostat
Neon
) neons is illuminated a
) will
Air Flow
Monitor Neon
30° 40° 50° 60° 70° 80°
Fig. 11
Reset
Fig. 12
Pump/Low
Pressure Neon
Sensor Fault
Neons
7
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