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

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Fault Finding Guide

8.1 Intermittent Water Discharge

Intermittent Water Discharge from T & P Valve

Expansion Vessel

Charge Reduced

Test for correct operation. If water is still

discharging, contact a competent Engineer

Thermostat Failure

Test Vessel and

Recharge or Replace

Immersion Thermostat

Failure

Primary Cylinder

Thermostat

Faulty T & P

Valve

Repair or Replace

Immersion Thermostat

Repair or Replace

Thermostat

Replace T & P

Valve

Yes

Yes Yes Yes

No No

8 Fault Finding Guide

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Grant DuoWave Series Specifications

General