17
If pilot disturbance is not the cause, then the ODS safety system may be in operation. Switch the appliance OFF,
check the flue and carry out any remedial work required. Relight the fire and carry out a spillage test, DO NOT
allow the appliance to be used if it continues to fail a spillage test.
The aeration hole of the pilot must be carefully cleaned out on each annual service to ensure continued function
of the ODS.
The spillage monitoring system shall not be adjusted, modified, or put out of operation by the installer.
Any spare parts fitted MUST be of a type supplied for the purpose by the appliance manufacturer.
If the fire is not spilling, then further guidance should be sought, using the Troubleshooting section as a guide.
CHECKING FOR CLEARANCE OF COMBUSTION PRODUCTS
Close all doors and windows in the room, light the fire and allow to run for approximately 5 minutes on high
position.
After approximately 5 minutes, hold a smoke match just inside and below the centre of the lower front edge of
the top of the fire, as shown below in Fig 1.
All smoke generated should be drawn back into the flue, If slight spillage occurs or if in doubt, repeat the test
after a further 5-10 minutes. If the test indicates that spillage is occurring and the flue restrictor baffle has been
fitted, it should be removed and the test repeated after the fire has cooled, if spillage persists, the flue is not
functioning correctly and a fault exists.
If, after investigation the fault cannot be traced and rectified, the fire must be disconnected from the gas supply
and expert advice obtained.
After ensuring that the fire is safe to use it should be left on high position to fully warm up. During this time a
slight odour may be noticed, this is due to the "newness" of the fire and will soon disappear.
Fig 1
When the test has been completed satisfactorily, repeat with any extractor fans in the premises running on the
highest setting, and any communicating doors open, finally, repeat with all doors open.
DO NOT allow the fire to be used until the test is satisfactorily passed
.
Hold smoke match in position 10mm inside and
down from top face of the central slot
SECTION 13: TESTING FOR SPILLAGE