Common Problem
Boiler Shutting Off
Solutions for intermittent shutdowns and lockouts
Why Boilers Shut Off
Thermostat Cycling
NormalNormal operation - boiler cycles on/off as needed
Low Pressure Lockout
UrgentPressure below 1.0 bar triggers automatic shutdown
Overheating Protection
HighTemperature too high - safety feature activates
Ignition Failure
HighMultiple failed ignition attempts cause lockout
Failed Flame Detection
HighBoiler can't detect flame - safety lockout
Troubleshooting Shutdown Issues
1
Check error code on boiler display
Write down the code
2
Check pressure gauge
Should read 1.5-2 bar
3
Set thermostat higher than room temp
See if boiler ignites
4
Wait 30 minutes for lockout reset
Try again carefully
5
Listen for ignition sounds
Click or spark means trying to ignite
Call for Emergency Service If:
- • Boiler won't stay on for more than 5 minutes
- • Error code keeps returning after reset
- • No heat and outdoor temperature dropping
- • Burning smell when boiler attempts ignition
- • Water leaking from boiler area when it shuts off