39
Symptom Possible Cause Remedy
Maximum water
temperature too
hot or cold.
Maximum water temperature set
incorrectly.
Reset maximum water temperature.
Refer to Cartridge Temperature
Adjustment (page 32).
Control dials sti
to operate.
Debris/Scale build up. See General Maintenance (pages 33
and 34)
Outlet water
temperature too
hot/cold.
Inlet filter is partially blocked. Clean as necessary. Refer to General
Maintenance section (page 33).
Installation conditions outside
operating parameters.
Refer to Water Supply Requirements
(page 4). Refer to Cleaning the
Thermostatic Cartridge section
(page 34). Refer to Cartridge
Temperature Adjustment (page 32).
Hot water temperature is less than
10°c above the required blend
temperature.
Adjust hot water temperature or
wait for water to reheat if stored
system is used.
Instantaneous water heater not
igniting because water flow rate is
too low.
Increase water flow rate through
the system. Check inlet filters and
clean as necessary. Refer to General
Maintenance section (page 33).
Contact the boiler manufacturer.
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