Fault Finding; Permanent Pilot Models - Standard And Hi-Flo Range - andrews 32/143 Installation Manual, Operation And Service Manual

FAULT FINDING

FAULT ACTION
WATER DOES (a) Check gas service cock is open.
NOT GET HOT (b) Check water valves are open
(c) Check pilot is alight
(d) Check thermostat setting. reset to higher temperature)
(e) Check gas pressures at burner and at gas inlet to appliance.
(f) Standard Range. Check cold dip inlet tube for damage.
PILOT FLAME (a) Try to light burner.
FAILURE (b) Pilot will not light. Wait 3 minutes then try again.
NOTE: If pilot flame has failed and water is overtemperature,
ECO may operated. In which case, determine cause of
overheating.
PILOT WILL NOT (a) Check gas is available
STAY ON (b) Check thermopile and ECO connections. Replace if necessary.
(c) Check if inlet gas pressure is too high or too low. Pressure to
(d) Pilot jet blocked. Clean or replace pilot jet.
(e) Faulty magnet coil. Replace multifunctional control.
(f) ECO safety thermostat operating at too low a temperature.
Replace faulty control.
400mV from thermopile indicates a good thermopile
BURNER WILL NOT (a) Thermostat setting too low.
LIGHT (b) Gas control knob not set to ON.
PILOT ESTABLISHED (c) Check thermostat for failure to close.
(d) Check gas control valve.
THERMOPILE / (a) Check pilot connection for loose joints.
THERMOCOUPLE (b) Check correct ventilation is available.
BURNS OUT (c) Check flue is clear and is correctly designed and flue terminal
FREQUENTLY
(d) Check for presence of halogen compounds.
multifunctional control should be 17 mbar (7in WG) to 25
mbar (10in Wg).
is correctly positioned.
45
SECTION 8
PERMANENT
PILOT MODELS
STANDARD AND
HI-FLO RANGES