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10
SB
2
heat up times
Table 3
Professional Service (see table 2)
If the SELF HELP checks do not cover the symptom, you should seek professional help.
The following additional checklist is provided for the benefit of the qualified engineer.
WARNING: SWITCH OFF THE ELECTRICITY AT THE ISOLATING SWITCH BEFORE REMOVING
THE COVER TO MAKE CHECKS.
Table 2
a) Unit fails to heat the water
Check that the water supply is on and that its pressure is
between 0.7 Bar 69kPa (10 psi) and 10.0 Bar 940 kPa (140 psi).
Check circuit through solenoid coil.
Check circuit through the heating element.
Check circuit through float switch.
If defective then replace.
b) All the lights are out and the
POWER button does not work
Ensure that the electricity supply is switched on at the isolator.
Ensure that the flying lead to the front cover is connected
properly (see Fig. 5a and Fig. 5b).
Check the supply to the PCB. If supply OK then change PCB.
c) Water flows continuously
from the steam vent pipe
Check that the float switch operates correctly and switches the
water solenoid on and off.
d) The water tank takes more
than 20 minutes to fill with
water
CONDITION
SB
2
is switched on at the local
isolator and the unit is empty
of water.
POWER button is pressed.
SB
2
is switched on at the local
isolator and the unit is already
full of cold water.
POWER button is pressed.
APPROXIMATE HEAT UP TIME
2.5 Litre SB
2
4 Litre SB
2
12 minutes 18 minutes
(4 mins filling (5 mins filling
8 mins heating) 13 mins heating)
8 minutes 13 minutes
WHAT ELSE HAPPENS
- POWER light comes on
- then FULL light comes on
- then TEMPERATURE READY
light comes on
- then steam comes out of
the vent for 30 seconds.
- POWER and FULL lights
both come on.
- then TEMPERATURE READY
light comes on.
- then Steam comes out of
the vent for 30 seconds
Check that the water supply is on and that its pressure is
between 0.7 Bar 69kPa (10 psi) and 10.0 Bar 940kPa (140 psi).
Check operation of the water solenoid and that water flows
into the tank at a rate between 0.3 Litres/min and 1 Litre/min.
Check circuit through the solenoid coil.