Pump Fault/Low Pressure; Safety Thermostat; Air Flow Monitor; Pump Protection - Baxi Combi Instant 80e User Operating Instructions Manual

Pump/Low
Pressure Neon
Air Flow
Monitor Neon
Safety
Thermostat
Neon
30° 40° 50° 60° 70° 80°
Fig. 14
Reset Position
Fig. 15
Fig. 16
Fig. 17
8
Sensor Fault
Neons
3.0 Operating the Boiler
3.4

Safety Thermostat

1. Your Baxi Combi Instant 80e or 105e is fitted with an
additional safety device, which shuts down the boiler in
the event of the system or the boiler overheating. The
safety thermostat neon ( ) will light in this instance
(Fig. 14).
2. To reset: Turn the selector fully anti-clockwise against
the spring pressure to the reset position (
(Fig. 15). Set the selector to the required position to light
the boiler.
3. If the safety thermostat operates repeatedly, causing
boiler shutdown, a fault is indicated. Your Installer or
Service Engineer should be contacted as soon as
possible.
3.5

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. 14).
3.6 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. 14).
2. Check the pressure gauge as described in Section 3.9.
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.
3.7 Sensor Fault
1. When the ( ) or ( ) neon is illuminated a fault
on the hot water or central heating temperature sensor
is indicated (Fig. 14). Contact your Installer or Service
Engineer.
3.8

Pump Protection

1. With the selector switch in either Position (i) or
Position (ii) (Figs. 16 & 17) the pump will automatically
operate for 1 minute in every 24 hours to prevent
sticking.
R ) and release