What does it mean when Weishaupt W-FM 25 Control Unit says voltage supply was temporarily interrupted?
If the Weishaupt Control Unit indicates that the voltage supply was temporarily interrupted, the cause is that the voltage supply was indeed interrupted. Check the voltage supply.
How to troubleshoot Weishaupt Controller when display is off?
If the Weishaupt Controller display is off, check the voltage supply. Also, check the unit fuse F7 (see Ch. 3.1), the function and setting of all regulating, control and safety devices, and all burner related functions.
What to do if Weishaupt Controller display flashes?
If the Weishaupt Controller display flashes, it indicates a burner fault, and the burner is in lockout. The error code should be read (e. g. [A7h]). Rectify the cause of the fault and press the [ENTER] key to reset the burner.
How to fix flame sensor short circuit on Weishaupt Control Unit?
If there is a flame sensor short circuit, replace the flame sensor.
How to troubleshoot communication errors with TWI interface (Vision Box) on Weishaupt Control Unit?
To troubleshoot communication errors, plug in and unplug participants on the TWI Bus only when de-energized, reduce the number of participants on the TWI Bus, and reduce cable length.
How to fix a faulty valve proving on Weishaupt W-FM 25?
If the valve proving is faulty, check the low gas pressure switch/valve proving gas pressure switch and the double gas valve.
Why does my Weishaupt W-FM 25 Control Unit say burner configuration incorrect?
If the Weishaupt Control Unit indicates that the burner configuration is incorrect, the cause is an incorrect burner configuration. Check the burner configuration and parameter E0 … E4 (see Ch. 4.2.4).
What to do if oil pressure switch does not switch in Weishaupt W-FM 25?
If the oil pressure switch does not switch, check the oil supply, the oil pump (replace if necessary), the oil pressure switch and cable (replace if necessary), and the pump motor and cable (replace if necessary).
What to do if Weishaupt W-FM 25 Control Unit has more than 5 resets in 15 minutes?
If the Weishaupt Control Unit has been reset more than 5 times in the last 15 minutes, wait 3 minutes and rectify the cause of the fault.
How to troubleshoot a Weishaupt W-FM 25 Control Unit with a display that is off?
If the display is off, you should check the voltage supply, the unit fuse F7 (see Ch. 3.1), the function and setting of all regulating, control and safety devices, and all burner related functions.
Details manufacturer, product, and conformity to directives.
Displays the CE mark and associated notified body number.
Explains manual purpose, symbols, and target audience.
Details exclusions for warranty claims.
Covers designated application, gas safety, and general operational safety.
Details gas supply, modifications, noise emission, and disposal procedures.
Lists terminal functions for gas, speed control, oil, and dual fuel burners.
Covers electrical data, ambient conditions, and physical dimensions.
Describes controls, display modes, and status codes.
Accessing burner data via info and service levels for different burner types.
Configuring settings via parameter and access levels for various burner types.
Steps for linearising operating points for gas burners.
Safety, removal, and installation steps for the unit.
Presets, settings, operating points, and behaviour for gas burners.
Setup for gas burners with speed control.
Presets, settings, operating points, and behaviour for oil burners.
Setup for dual fuel burners (gas and oil sides).
Procedure to turn off E-parameters after setup.
General fault handling, display states, and detailed codes.
Comprehensive list of fault codes, causes, and solutions.
Diagram and table of available spare parts.
Description of burner operating phases and conditions.
General| Brand | Weishaupt |
|---|---|
| Model | W-FM 25 |
| Category | Control Unit |
| Language | English |
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