Technical data

EM RANGE GAS FIRED
- 17 -
Burner lights
on start gas
but fails to
establish main
flame
Check Gas
supply
Excess Air
Check that flue Gas
CO is as advised
Adjust damper to
suit
Check Inlet Gas
Pressure
Check Flame
Probe
Low Gas
Pressure
Check Main Burner
Gas Pressure
Signal
Position
Check Controls
Check Burner
Check Control
Check Low Flame
Switch is On
Check Slow
Acting Valve
Burner starts but
excess temperature
shuts down the
burner on overheat
lockout
Insufficient air
passing over Heat
Exchanger
Check air to
inlet is not
restricted
Resistance too
high
Remove Obstruction
Clean Filters
Check Outlet Grilles
are Open
High Return (inlet ) Air
Temperature
Faulty or incorrectly set
Fan Limit Control
Fan Slipping
Impellor
Slipping
Check for
warm air short
circuit to Air
Inlet
Reset Fan Limit
Control
Refer to Air
Handling Unit
Manual
Reset Grilles away
from adjacent walls