SBD TANK TYPE HEATERS
SERVICE HANDBOOK
TROUBLESHOOTING THE EFFIKAL DAMPER (continued)
Condition:
Thermostat closed, damper open.
Service Switch
Damper
Open
Damper
Auto
STEP 9B
A1 IS CORRECT, CHECK SERVICE SWITCH POSITION
IF | THEN | |
Switch is incorrect position | Replace damper board/motor assembly. | |
Switch is not in correct position | • | Adjust switch |
| • | Cycle thermostat to verify that damper |
|
| operation is correct. |
Technical Training Department | 29 |
Ashland City, TN ©2003 |