Welcome! Here are the website rules, as well as some tips for using this forum. 
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.
If our community has helped you, please consider making a contribution to support this website.  Thanks!
Replacing thermostat - anything special about power off?
 
            
                
                    28W                
                
                    Member Posts: 141                
            
                        
                
                                    
                                  in Gas Heating             
            
                    In preparation for replacing my thermostat, is there anything special about shutting off power to a modcom system that I need to be aware of?  My old oil boiler had a "kill" switch upstairs to shut down the boiler and pumps.  I'm pretty sure that switch is still active on the new Vitodens boiler (the power to the new system comes from the existing circuit).  So, can I just flip the switch?                
                0                
            Comments
- 
            nevermind
 There was an error rendering this rich post. 0
This discussion has been closed.
            Categories
- All Categories
- 87.2K THE MAIN WALL
- 3.2K A-C, Heat Pumps & Refrigeration
- 59 Biomass
- 427 Carbon Monoxide Awareness
- 118 Chimneys & Flues
- 2.1K Domestic Hot Water
- 5.7K Gas Heating
- 112 Geothermal
- 164 Indoor-Air Quality
- 3.7K Oil Heating
- 73 Pipe Deterioration
- 1K Plumbing
- 6.4K Radiant Heating
- 393 Solar
- 15.5K Strictly Steam
- 3.4K Thermostats and Controls
- 56 Water Quality
- 51 Industry Classes
- 49 Job Opportunities
- 18 Recall Announcements
