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3.7 Troubleshooting
Installation, servicing and repairs may only be carried out by an approved engineer.
The following table illustrates only a few solutions to straightforward problems.
The operations marked with “*” may only be carried out by an approved technician
Fault Possible Cause Solution
Appliance does not ignite. Switch set to Off Check position and refit/replace.
Pilot flame lights slowly/with difficulty Low water flow. Check and adjust.
Red LED flashes Low water flow. Check and adjust.
Water not hot enough Check position of water temperature control and
adjust to obtain desired hot water temperature.
Water not hot enough, no flame Gas supply dynamic pressure too low Check gas cylinder governor and replace if
incompatible or damaged.
Check whether gas cylinder (butane) is freezing
when appliance is in operation and re-site in
warmer location if necessary.
Flame goes out while appliance is in
operation.
Temperature limiter has tripped. Wait 10 minutes then restart appliance. If
problem recurs, call an approved technician.
Flue gas safety device has tripped. Ventilate room. Wait 10 minutes then restart
appliance. If problem recurs, call an approved
Reduced water flow rate. Inadequate inlet flow rate. Check and adjust.
Dirt in water service cock or mixer unit. Check and clean.
Automatic water valve clogged. Clean filter.*
Heat exchanger clogged (scale). Clean and descale as necessary.*
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