13
FAULT
REMEDY
Pilot will not light
Purge gas line.
POSSIBLE CAUSES
Air in gas line.
Check and clear gas supply line.
Blockage in gas line.
Check supply pressure at gas valve inlet
pressure test point - increase supply
pressure to specified value with main
burner running:
- Natural Gas: 1.13 kPa
- Propane:
2.75 kPa
Insufficient gas supply
pressure.
Check ignition lead is connected and not
damaged. Check ignition electrode
position.
No spark.
Pilot goes out when
main burner is turned
on.
See above.
Insufficient gas supply
pressure.
Main burner will not
ignite.
Check and adjust pilot flame (see
'Commissioning').
Low pilot flame.
Cannot achieve
specified test point
pressure.
See above.
Insufficient gas supply
pressure.
Room fan does not
start.
Check/connnect electricity supply.
No electricity supply.
Check/re-connnect wiring.
Wiring dislodged.
Check room fan is free to rotate. Gently
pull motor forwards to clear fan wheel
from internal rear panels if necessary.
Room fan pushed in
and jammed during
transport.
Fan will not switch
from low to normal.
Check test point pressure - adjust if
necessary (see 'Specifications').
Test point pressure too
low.
Fan noisy.
Select 'Auto' at manual fan switch.
Boost selected at
manual fan switch.
Heater turns off
before room warms
up.
Increase setting on control.
Control set too low.
Re-locate thermostat bulb bracket (see
'Commissioning).
Thermostat bulb too
close to bottom of
heater.
Check/re-locate furniture to ensure clear
path for heated air jet.
Hot air recirculation.
Check for air leakage from rear register
components if fitted.
Objectionable odour
when heater is
running (see note
below).
Check flue cowl installation - re-fit
correctly if necessary.
Flue cowl pushed on
too far.
Check flue cowl location - must be at
least 500mm from roof.
Flue cowl too close to
roof.
Note: Some odour from a new heater is normal - this will generally disappear after a few
hours of operation at maximum gas rate.
