Roberts Gorden HF 30 v4 Installation, Commissioning, Service & User Instructions page 63

CABINET HEATER
9.2 Gas Burner Fault Finding (see also Burner Manufacturer's Instructions)
Is the air pressure switch
Does the burner fan run ?
See Section 5 for setting
at rest
(no contact open)
Fault lies elsewhere
Does 'lockout' occur before the Use 9.3 to check the flame
burner has run for 10 secs ? monitoring system
Does 'lockout' occur after the Check combustion air fan is clean.
Check settings
burner has run for 10 secs ? Check combustion chamber
air pressure switches
is clean and sound.
Check flue is clean and sound.
Check joint between flue spigot and
flue is sound.
Check ignition circuit, fuel supply
Does the burner fire ?
and gas solenoid valves
Use 9.3 to check flame monitoring
Does 'lockout' occur ?
circuit
Does main gas fire ? Check main gas valves and wiring
BURNER OPERATING