Name: Grant DuoWave Series
Brand: Grant
Rating: 5 (1 reviews)

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Fault Finding Guide

8.4 Cold Water Flow from Hot Water Taps

Cold Water from Hot Water Taps

Is Programmer calling

for Hot Water?

Check and Set Hot

Water setting

Is Motorised Valve

working?

Is Boiler working?

Is Cylinder Stat

Calling for Heat?

Check Motorised Valve

motor and Micro-switch

Yes

No No No

No Yes

Yes

Test for correct operation. If water is still

cold, contact a competent Engineer

Has Thermal Cut-Out

Operated?

Check and Reset

Button

Check and Replace

Cylinder Thermostat

Yes

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Grant DuoWave Series Specifications

General