16
FAULT FINDINGS
1.
Poor Chimney Draught
(a) Obstruction
(a) Clear and Clean
(b) Too Low
(b) Raise Height above Ridge
(c) Too Wide
(c) Fit Flue Liner 15 to 23 c.m.
(d) Crack in Wall
(d) Repair Cracks
(e) Shared by another unit
(e) Cut of other Unit.
2.
Excessive Chimney Draught
(a) High Chimney
(a) Open Flue Cover of fit Draught Stabiliser
3.
Down Draught
(a) High Trees
(a) Raise Chimney Height
(b) High Buildings
(b) Raise Chimney Height
(c) Negative Pressure Zone
(c) Fit Cowl
4.
Cooker Smoking
(a) Insufficient Primary Air
(a) Provide Room Air Inlet
(b) Chimney Choked
(b) Clean Chimney
(c) Side Flueways Choked
(c) Clean Flueways
(d) Down Draught
(d) Raise Chimney Height
5.
Hot Plate Not Heating
(a) Soot Under Hot Plate
(a) Remove and Clean
(b) Fire too Low
(b) Build better Fire
(c) Utensils not Flat
(c) Use machined based Utensils
6.
Oven Not Heating
(a) Poor Chimney Draught
(a) Raise Height or Fit Cowl
(b) Flueways blocked with soot
(b) Clean Out
(c) Damper open to Chimney
(c) Close Damper
(d) Faulty Thermostat
(d) Check and replace if necessary
7.
Radiators Not Heating
(a) Pump not Working
(a) Check and replace if defective
(b) Air in Radiators
(b) Vent Radiators
(c) Pipe System Faulty
(c) Check Pipe Sizes and Circuit
(d) Excessive Number of Radiators
(d) Turn off un-needed Radiators
(e) Radiator Valves not adjusted
(e) Adjust Valves to give even flow
8.
Domestic Hot Water Cylinder
(a) Cylinder too Large
(a) Use 135 - 180 L Cylinder
not heating
(b) Flow Pipe too small
(b) Use 25mm Bore Pipe
(c) Flow Pipe crossed
(c) Reverse Flow Pipe
(d) Cylinder too far away
(d) Not more than 7.8m fully lagged.
(e) Hot water from boiler not
(e) Adjust Flow Control Valves or
reaching cylinder
fit injector tee.
9.
Intermittent Performance
(a) Cooker starved of Primary Air
(a) Provided Air Inlet in Room.
(b) Extraction Fan in room
(b) Provide additional Air Inlet in room
(c) Cooker subjected to wind
(c) Raise Chimney of Fit Cowl
change
(d) Dirty Flueways
(d) Clean Flueways Frequently.
(e) Poor Fire
(e) Burn more Fuel
(f) Uncontrolled Burning
(f) Repair or Replace Thermostat
10.
Domestic Hot Water Rusty
(a) Leak in Indirect Cylinder Coil
(a) Replace Cylinder
(b) Incorrect Cylinder Fitted
(b) Check with installer
It is of the utmost importance to keep the flue pipe and chimney clear of deposits by regular sweeping of the
chimney irrespective of whether the fuel used is classed as smokeless or not. All fuels give rise to soot or ash
deposits and regular cleaning is essential for safe operation.
Blocked or partially obstructed flueways and chimneys will cause dangerous fumes to be emitted into the room,
these may well be invisible if a smokeless fuel is burned.
