Davey POOL AND SPA GAS HEATERS - Manual (Page 12)

Part No: 96131430D 12 Rev: 2
OPERATING INSTRUCTIONS
HEATER CONTROLLER LAYOUT
Note: The MODE button switches between Pool and Spa modes.
BEFORE OPERATING
1. Ensure that the immediate area around the heater is clear of all combustible materials including chemicals and gases.
2. Familiarise yourself with the hand operated gas isolation valve located outside your heater.
3. Ensure that the heater is free from obvious damage.
4. Ensure that the correct power connections have been made and are able to be isolated.
SERVICE CODES
If the controller detects an error in one of its safety circuits it will display a Service code. The codes are as follows:
1. PO – No mains power to the unit
2. o – Insufficient water pressure
3. F1 – Water temperature
exceeds maximum permitted
4. F2 – Main sensor open circuit
5. F3 – Main sensor short circuit
6. F4 – Secondary sensor short circuit
When the mains power supply is interrupted, the unit will revert to a standby mode utilising the back-up capacitor supply. (This will
last for at least two hours providing the unit has had sufficient operating time to charge the capacitor).
The unit will not provide heat whilst there is no mains power. The controller will, however, retain its settings as long as the
capacitor has charge. Upon resumption of mains power, the unit will revert to the state it was in prior to the mains power being
interrupted.
Whenever the controller is on and there is insufficient water pressure to activate the pressure switch it will display the letter “o”.
There is either insufficient water pressure in the system (e.g. pump is not operating) or the pressure switch requires adjustment.
There is a high limit temperature safety device built into the heat exchanger header. In the event of a system fault resulting in water
temperature exceeding the maximum limit of this device, the controller will display F1.
In the event F1 is displayed, the unit must be allowed to cool and the controller MUST be switched OFF and then ON again before
the unit will resume normal operation. (This is a safety requirement of the Australian Standard).
F2, F3 and F4 are errors relating to the unit’s temperature sensors. The errors arise from problems with the sensors or the sensor
connections. In the event one of these errors is displayed you should contact your Rheem Service agent.
OVER-TEMPERATURE SHUTDOWN
If the inlet water temperature exceeds 45°C, the heater will shut down and require a manual reset to restart. Once the unit has
cooled to approx 35°C, the red reset button will illuminate and need to be pressed, after which the reset lamp will go out and the
heater will resume normal operation.
Note: There is no immediate indication of the over temperature shutdown; the control panel will still indicate a call for heat (small
flame symbol). If the heater has gone out during normal operation, and the flame symbol appears on the display, allow up to 4