SMART BOARD
Fan And Heater
| Light Identification |
Light 1 | Signifies the on/off switch is on |
| and the heater |
Light 2 | Signifies the fuse is good. |
Light 3 | Signifies the 10 second time delay |
| relay and/or the DPDT relay is |
| energized. |
Light 4 | Signifies the vapor |
| closed, or set, not tripped out. |
Light 5 | Signifies the |
| is calling for heat. |
Light 6 | Signifies the DPDT relay, vapor |
| solenoid, liquid solenoid, ignition |
| transformer and indication light are |
| receiving power. |
Light 7 | Signifies the cycle thermostat is |
| closed and the cycle solenoid is |
| receiving power. |
Light A | Signifies the flame probe is closed. |
Light B | Signifies the DPDT relay is |
| energized and the time delay reset |
| is receiving power. |
| Troubleshooting Chart |
Light # | Description |
0 | If no light is on, first check the on/ |
| off switch to be sure it is in the on |
| position. If the unit still does not |
| operate, check the heater |
1 | If light #1 is the only one lit, |
| check the fuse on the SMART |
| BOARD. If faulty, replace. |
1 and 2 | If only lights 1 and 2 are lit, |
| check your connections to the |
flame detection module. (blue/ black and white/brown wires). If connection is good replace flame detection module.
1,2 and A If onlylights 1,2 and A are lit, check the 10 second purge relay and/or the DPDT relay. Replace either part if faulty and restart unit.
1,2,3 and A If only lights 1,2,3 and A re lit the vapor
1,2,3,4 and A If only lights 1,2,3,4 and A are lit, the humidistat thermostat or other heater control device has shut down the unit. Allos time for thermostat to cool and if unit does norestart check and/or replace control device.
68