REMEHA 1000 Indirect, Installation Manual

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WARNING
Do not tamper with any of the safety valves or controls supplied with the cylinder as this will invalidate any guarantee.
10.1 Fault finding
Important
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After servicing, complete the relevant Service Interval Record section of the Benchmark Checklist.
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Servicing should only be carried out by competent persons in the installation and maintenance of unvented water heating systems.
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Any spare parts used MUST be authorised parts.
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Disconnect the electrical supply before removing any electrical equipment covers.
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NEVER bypass any thermal controls or operate system without the necessary safety valves.
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Water contained in the cylinder may be very hot, especially following a thermal control failure. Caution must be taken when drawing
water from the unit.
The fault finding chart (table 6) will enable operational faults to be identified and their possible causes rectified. Any work carried out on the
unvented water heater and its associated controls MUST be carried out by a competent installer for unvented water heating systems. In case of
doubt contact service support.
Spare Parts
A full range of spare parts are available for the cylinder range (table 7). Refer to the technical data label on the unit to identify the model
installed and ensure the correct part is ordered. You will need to quote the serial number, which is printed on the data label.
page 20
Table 6: Fault finding chart
Fault Possible Cause Remedy
Mains supply off Check and open stop cock
No hot water flow
Cold water combination valve incorrectly fitted Check and refit as required
Indirect programmer set to central heating only Check, set to domestic hot water programme
Indirect boiler not working
Check boiler operation.
If fault is suspected consult boiler manufacturer's instructions
Indirect thermal cut-out has operated
Check, reset by pushing button on thermostat.
Check operation of indirect thermostat
Water from hot tap
is cold
Indirect motorised valve not connected correctly Check wiring and/or plumbing connections to motorised valve