INSTRUCTION REF: IN166
ISSUE NO. 6
DATE - 21.03.16
Page 11 of 24
www.parry.co.uk
FAULT FINDING
FAULT
POSSIBLE CAUSE
REMEDY
HOB
Incorrect flame picture,
flame lift or noisy burner
Incorrect burner pressure,
Blocked or partially blocked
injector.
Inadequate ventilation.
Burner faulty/corroded/blocked
Check/adjust burner pressure
Check /clean injector,
Check ventilation.
Check / clean burner and
replace as necessary.
Burners will not stay
alight
Faulty connection at
thermocouple-valve, incorrectly
located
Remake connection,
reposition thermocouple
Burner goes out when
turned to “low”
Blockage in tap
Clean and re-grease
Irregular flame
Burner ring/cap not correctly
located, or low pressure
Relocate and check pressure
at test point.
OVEN
Failure to ignite
Dirt or grease broken or loose
connection
Clean reconnect / replace
H.T.Lead
Incorrect spark gap
Set gap 3-4mm
Burner fails on low rate
Loose Thermocouple
Replace
Faulty Magnet in F.F.D.
Replace thermostat
Burner fails on low rate
Thermocouple out of position.
Reposition