Roberts Gorden Dualair DA260G Series, Installation, Comissioning, Service & User Instructions

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9.4 Simple Fault Finding - General
Some possible reasons for the heater not operating are:-
1. Gas supply not turned ON.
2. Electricity supply not turned ON.
3. The installed time and/or temperature controls are not “ON”.
4. One or both of the limit thermostats may have operated. This may be caused by
inadvertent removal of the electrical supply or failure of the distribution fan.
Limit thermostat 1 is on the combination thermostat. To reset, press in and release
the red reset button (see Fig 2.1).
Limit thermostat 2 is under the screw on cover on the side of the heater
(see Fig 2.1).
To reset remove the screw on cover and press in the reset button. Replace the
cover after use.
If the Limit thermostats persistently operate then there is a fault which must be
investigated by a competent engineer.
Any other problem will require the assistance of a Service Engineer.
Some possible reasons for the cooling not operating:-
1. Controls not calling for cooling.
2. Fan failed.
3. Filters dirty
4. Local isolator for condenser units turned off
9.4.1 Simple Fault Finding - Automatic Ignition Heaters
5. If under fault conditions the burner fails to ignite for any reason then it will go to the
lockout condition this will be indicated by the red lockout warning light on the heater
or remote control
To reset press in and release the lockout reset button after waiting for one minute
(see Figs 2.1 & 2.2).
"Lockout" should not occur during normal operation of the heater and indicates there is a fault condition
which must be corrected.