Heatstore Ultima Profile Eco 2.5 Installation And User Instruction Manual page 11

SYMPTOM
Unit does 1. If "ON" indicator not illuminated -
not heat on no power to unit
commissioning
2. If "READY" light flashing - water
supply not turned on
3. Solenoid fault
4. Low water pressure
5. Element fault
Water flows 1. Solenoid valve fault
from vent and
primary cutout 2. Level sensor fault
operates
3. Electronic control fault
4. Low water pressure
Steam from 1. Control thermistor fault - open
vent pipe and circuit
primary cutout 2. Electronic control fault
operates
3. Scale build up
Drips from 1. Incorrect spring tension
outlet
2. Scale: debris under tap seal
3. Damaged tap seal
4 Scale on tap outlet spout
Water "runs 1. Scale on tap outlet spout
on" when tap
released 2. Scale debris under tap seal
3. Damaged tap seal
Stale taste to Unit left unused for several days
water
Tap sticks Dirt around handle pivot
open
Water 1. Control thermistor pocket has a
consistently covering of scale
cooler than 2. Control thermistor out of
when new calibration
3. Steam thermistor out of
calibration
For any faults that cannot be identified using the Fault Finding chart please
contact Heatstore where shown on the back page.
POSSIBLE CAUSE ACTION
1. Check power supply is correctly
connected and switched on and that
the primary cutout has not operated
2. Check water supply
3. Check operation of solenoid valve,
replace if necessary
4. Check supply
5. Check element continuity. If faulty
replace
1. Check operation of solenoid valve.
Replace if necessary
2. Check level system earth
connections
3. Check connections to electronic
control. Replace if necessary
4. Increase inlet pressure
1. Check continuity (5Kohms at 100°C)
2. Check connections to electronic
control. Replace if necessary
3. Descale unit
1. Ensure tap headwork nut correctly
adjusted
2. Remove and clean as necessary
3. Replace tap seal
4. Clean tap outlet
1. Clean tap outlet
2. Replace and clean as necessary
3. Replace tap seal
Empty and allow to refill before use
Clean with a stiff paint brush
1. Descale the pocket surface & unit
2. Check values (5Kohms at 100°C,
100Kohms at 25°C)
3. Check values (5Kohms at 100°C,
100Kohms at 25°C)
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