Dewhot NDCT16DH, Instructions Manual

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Page 20 of 30
Dewhot | Gas geyser manual
Symptoms and faults
Symptom FAULT
Pilot comes on but ignitor
continues to tick
Partially blocked pilot tube - the flame out
sensor is not in the flame
Faulty flame out sensor
Or after heavy rain the controller can be
wet, this will sort itself once dried off
The pilot is firing and firing but
does not take a flame, an E1 error
comes up and there is a faint
smell of gas
Check the pilot flame tube is not blocked or
partially blocked by a spiders web, remove
tube and clean it out, always check the
pilot jet at the same time
Unit fires continuously without a
flame coming on or showing an
error
Faulty controller
Faint firing and PA, BA or 6A
comes up on the screen
Flat batteries
The geyser flame comes on and
runs up to temperature then
drops away and tries to re-
ignite. The process repeats and
either no error comes up on the
screen or an E8 error is shown
LCD panel is faulty or the control box is wet
normally after a storm
Wait at least a day for the unit to dry
before lodging a service call
Only 35-38 degrees reached on
the LCD screen
The water flow may be too high, reduce it
and place a 400kPa pressure reducing valve
on the cold water line
The regulator may be undersupplying gas,
Check the gas inlet pressure is operating at
2,8 kPa while the applinace is running;