Troubleshooting; General; Decommissioning; Decommissioning Procedure - Heatrae Sadia Multipoint Instantaneous Fitting Instructions Manual

9. Troubleshooting

9.1 General

Your product should give trouble free operation.
However if a problem occurs the table below should
allow most faults to be identified. Fault finding should
only be carried out by a competent person.
For any faults that cannot be identified using the
fault finding chart please contact the Heatrae Sadia
Service Department.
Symptom
1. Water too hot
2. Water too cold
3. Temperature
varies while
showering, cycling
hot/cold
4. "Power on"
indicator not lit.
Isolating switch "ON"
but its neon not lit
5. Water emerges
from expansion
relief valve
6. No water flows
with valve open
Possible cause
A. Water flow too low
A. Electrical power to the
Multipoint heater is off
B. Water flow too high
C. Element fault
A. Pressure switch is operating,
normally making a "click" as it
does so
B. Input pressure is below 1.0 bar
(14.5psi); flow is not stable
A. Cartridge fuse or miniture
circuit breaker (mcb) has
operated in your fusebox (or
consumer unit) or switch fuse
B. Residual current device (rcd)
or (earth leakage circuit breaker)
has operated
A. Expansion relief valve has
operated
A. Water supply turned off
B. Unit frozen

10. Decommissioning

10.1 Decommissioning procedure

Isolate electrical supplies and make safe
`
Isolate the water supply
`
Drain the product
`
Remove the product
`
Cap pipework
`
Environmental information
Products are manufactured from many recyclable
materials. At the end of their useful life they should
be disposed of at a Local Authority Recycling Centre
in order to realise the full environmental benefits.
Remedy
Increase the flow by turning the stop valve
Ensure that the electrical supply to the Multipoint
Reduce the flow by adjusting the water control
isolating valve
Check for open circuit
Check water pressure/flow
Ensure that your stop cock and servicing valve
are opened fully
Switch off Multipoint Instantaneous and isolating
switch. Renew fuse, reset the mcb. If they
operate a second time, contact a qualified
electrician
Follow the same procedure as above. If this has
happened with a "split load" consumer unit on
initial installation, check that the neutral core
of the Multipoint Instantaneous feed cable is
connected to the "protected" neutral bar of the
unit
1. Switch off immediately at isolating switch
2. Turn water off at the servicing valve (if fitted)
or stop valve
3. Contact Heatrae Sadia Service Department
Turn on water supply
Turn OFF ELECTRICITY at isolating switch
and contact installer DO NOT USE THE
MULTIPOINT INSTANTANEOUS
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