andrews CSC39, Инструкция по установке, Руководство по эксплуатации и обслуживанию

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FAULT FINDING SECTION 7
32
FAULT ACTION
WATER DOES (a) Check gas service cock is open.
NOT GET HOT (b) Check water valves are open.
(c) Check thermostat setting. (reset to higher temperature)
HEATER SOOTING, (a) Check gas burner. If possible, check heat input with meter
YELLOW FLAME and watch.
(POOR (b) Clean burners and injectors.
COMBUSTION) (c) Flue obstruction. Clean flue ways.
(d) Check flue 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.
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.