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Bristan Descent DSC BAS C にも：インストール手順とユーザーマニュアル (16 ページ)

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Troubleshooting

Symptom

No flow or low

flow rate

Water dripping

from taps

Taps do not

turn on

Need help? Give us a call on 0844 701 6273 and speak to one of our trained advisers.

Cause

Partially closed isolation valve.

Instantaneous water heater

cycles on and off as flow rate or

pressure is too low.

Head of water is below the

minimum distance required.

Hot or cold water being drawn

off elsewhere causing pressure

changes or instantaneous boiler

temperature changes.

Airlock or partial blockage in the

supply pipework.

This is normal for a short time

after using the taps.

If water continues to drip,

possible build up of debris/ lim-

escale in ceramic disc valves.

Closed isolation valve.

Water supplies to the tap turned

off.

Remedy

Open isolation valve.

Increase water flow rate or

pressure through system to

meet required minimum working

pressure of tap.

Refer to 'Specifications' on page

Do not use other water outlets

when using the taps.

Flush through pipework to

ensure removal of debris and

any airlocks.

This is caused by capilary action,

the build up of water in the tap

body.

Remove valves and clean, refer

to 'Maintenance' section on page

15 before removing the valve.

Open isolation valve.

Turn on both water supplies to

the tap.