Grant DuoWave Series User Manual

Fault Finding Guide
26
8 Fault Finding Guide
8.5 Excessive Hot Water from Taps
Excessive Hot Water from Taps
Is Cylinder Thermostat
set too high?
Reduce Thermostat
Setting
Is System Wiring
correct?
Correct Wiring as
per instructions
Is Cylinder Thermostat
Operating?
Replace Cylinder
Thermostat
No
Yes Yes
Yes
No
No
Test for correct operation. If water is still
cold, contact a competent Engineer
Does Motorised Valve
close when Thermostat
is satisfied?
Repair or Replace
Motorised Valve Motor
Repair or Replace
Motorised Valve
Fault. Contact
Engineer
Yes
No

Grant DuoWave Series Specifications

General

Brand	Grant
Model	DuoWave Series
Category	Water Heater
Language	English