Installation guide

FAULT FINDINGSECTION 8
PERMANENT
PILOT MODELS
STANDARD AND
HI-FLO RANGES
42
FAULT ACTION
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 is correctly positioned.
(d) Check for presence of halogen compounds.
HEATER SOOTING, (a) Check gas burner pressure and injector size. If possible,
YELLOW FLAME check heat input with meter and watch.
(POOR (b) Clean burners and injectors.
COMBUSTION) (c) Flue obstruction. Clean flue ways.
(d) Check flue design and termination position.
(e) Check for correct ventilation.
WATER (a) Reset thermostat to lower temperature.
TEMPERATURE (b) Thermostat faulty. Check and replace if necessary.
TOO HIGH (c) Main gas valve not closing. Clean or replace.
WATER (a) Reset thermostat to higher temperature.
TEMPERATURE (b) Check gas pressures at burner and at gas inlet to heater.
TOO LOW (c) Thermostat faulty. Check and replace if necessary.
NOT ENOUGH (a) Check gas pressures at burner and at gas inlet to heater.
HOT WATER (b) Check amount of water being used against recovery rate
given on data plate. If usage too high, more heating capacity
needed.
WATER DRIPPING (a) Check if this stops when water in heater is hot. If yes, then
FROM BASE OF condensation is the problem caused by incorrectly designed
HEATER flue or by tank cooling excessively, i.e. more hot water
being used than recovery rate of heater. If so, more
heating capacity needed.
(b) If water continues to drip when heater is hot, problem is
leaking joint or storage vessel.
RUMBLING NOISE (a) Scale formation in heater, consult water treatment
specialist. Heater must be descaled and suitable water
treatment provided to avoid re-occurrence.