Grant QR Range - Excessive Hot Water and Other Faults

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8.5 EXCESSIVE HOT WATER FROM TAPS
Excessive hot water from taps
Is cylinder thermostat set too
high?
Is system wiring correct?
Correct wiring as per
instructions?
Reduce thermostat setting
Is cylinder thermostat
operating?
Replace cylinder thermostat
Does motorised valve close
when thermostat satised?
Repair or replace motorised
valve motor
Fault. Contact engineer
Test for correct operation. If
water is still cold, contact a
competent engineer.
No No
No
No
Yes
YesYes
Yes
Yes
Repair or replace motorised
valve
Section 8: Fault Finding