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Siemens Building Technologies / HVAC Products CE1B3131x2-en 74 319 0346 0 a 19.11.2004
Can the following tips help in the event problems occur?
General
Before you call in your heating engineer (for details, refer
to the next page), you should check the following:
• Is your plant switched on? Check main switch and all
other switches
• Are all fuses of your plant in order?
• Is enough fuel in the tank?
• Have settings been changed by unauthorized per-
sons? (Time of day, setpoints, etc.).
• Does a fault appear on the display?
The heating always maintains the same room tem-
perature:
• Check the room operating mode (only
lowers
and raises the room temperature)
• Has the actuator been disconnected from the valve?
Connect it!
The required room temperature is reached either too
early or too late:
• Change the time program
• When the building is well insulated, it takes more time
to cool down
The heat source does not operate any more:
• The burner has initiated lockout. Press the reset
button!
• The heating circuit pump and / or the boiler pump
does / do not operate. Check the fuses!
• The fuel tank is empty or the fuel pump does not
operate
The heat source operates, but there is no supply of
heat:
• Operate the heating valve manually.
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