NEXTGEN BOILER 1008484348 Electrical Hydronic Boiler with 49000 BTU User Manual
Troubleshooting
Do not attempt to service this boiler unless you have been trained in all aspects of its functionality and methods to repair. Failure to service properly may lead to further damage to components
| Symptom | Reason | Action |
| All indicators on control panel are OFF | No power to boiler | Check for 240 VAC on boiler main connection terminals |
| Reset manual safety high limit | ||
| Contact authorized service person | ||
| “PSI” indicator blinks | Insufficient pressure below 7 psi | Switch the controller to pressure view and increase system pressure above the minimum required 7 psi level. |
| Pressure sensor failure | Switch the controller to pressure view, if display shows – – Contact authorized service person | |
| “GPM” indicator blinks | Pump is blocked | Unblock the pump-unscrew the screw on pump housing and move the pump rotor manually |
| Heat does not circulate through the boiler boiler is blocked | Air bubble is caught in system, purge the installation, pump and boiler | |
| Check 1 amp fuse on control panel | ||
| Failure of pump or flow sensor | Check power supply for circulating pump | |
| a failure of pump or flow sensor | Contact an authorized service or the seller | |
 Circulator indicator blinks | Lack of water flow – 2 GPM min | Adjust flow characteristics as needed |
 ‘Heating status” is off | No thermostat connection | Insure thermostat is calling for heat and is above ambient temperature set point |
| Verify connections on thermostat | ||
| Failure of control board | Check fuse on control panel glass fuse 6,3 x 32mm 2A | |
| “Heating status” blinks | Off Peak signal = no heat | Electric utility off peak control |
 and”Inlet temp.” blinks | A failure of inlet temperature sensorand , boiler in failure condition | Check connection or replace thermistor sensor |
| and “Outlet temp’ blinks | A failure of outlet temperature sensor or loose connection | Check connections |
| Replace HC-DN 15 sensor | ||
| Boiler does not heat | Failure of cylinder temperature sensor | Contact authorized service person for replacement of cylinder temperature sensor or thermostat |
| A failure of control panel | Contact authorized service person | |
| EEE message on display | Data record error | Contact authorized service person |
| Insufficient heat output | Heating elements | Check for resistance on elements |
| Control panel set up failure | Insure control panel Is set up for correct kW and number of heating elements through advanced settings |
Care and Maintenance
- In order to protect flow sensor located within the boiler, it is imperative that the pre-installed magnetic filter is removed and cleaned at least annually. Failure to clean out this filter could increase contamination of the boiler by system residue.
- Periodically check system pressure. Contact authorized service person to make adjustments only.
General Boiler View
