31 | P a g e
8. If changing the parameter does not work, carry out a factory reset on the PCB using parameter 2.8.0. If this
does not work, replace the PCB.
205 Description: Solar water sensor defective.
Cause: (Very unlikely to see) The values of solar sensor out of specification. (10k OHM sensor is used for solar).
1. Check the Solar NTC sensor is connected to the boiler.
2. Check the boiler sensor wires for loose contacts and breaks.
3. If the cable has been extended, check the wires at the junction box/block connector.
4. Check if the sensor is installed correctly.
5. Check the resistance of the sensor per the table on page 67 from the solar connector at the boiler and
replace if required. (10k sensor for solar).
6. If after changing the sensor, the fault does not clear, carry out a factory reset on the PCB using parameter
2.8.0. If this does not work, replace the PCB.
7. If no sensor is fitted to the boiler replace the PCB.
3P9 Description: Maintenance Alert
Cause: Parameter 8.5.0 Months before next maintenance counter has expired.
The maintenance message can be enabled with parameter 8.5.1 and set from 1 to 60 months in 8.5.0. When the
time has elapsed, the maintenance message appears on the display.
1. Check service dates with the customer and ensure the boiler has been serviced in the correct timeframe for
warranty.
• Go to the service area by accessing the technical menu.
• Select Configuration wizard, Boiler 1, Service Options, Months remaining before service = time
remaining on service schedule.
2. Advise customer to call their installer to complete a boiler service.
3. After boiler serviced, the engineer will need to reset the service reminder flag.
4. To reset the service reminder flag:
• Go to the service area by accessing technical menu (007).
• Select Configuration wizard, Boiler 1, Service Options, Main warning reset.
• This will reset the countdown timer for the service reminder to the time stated in the menu
'Months remaining before service, default value = 12 months.
5. If necessary, the maintenance alert can be turned off when in the Service options screen by selecting Enable
Service Warnings, then select no.
To Next Page
Loading...
Need help?
General
