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- 4 Jan 2025
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Hi Friends,
I have a problem with my boiler that I've been unable to solve in the last 3hs. I hope you can help me.
My setup:
Family house, with Vaillant Turbotec Plus boiler + one VRT 230 thermostat
Context:
It's winter (with temperatures between -1 and 11ºC in the last week).
I've been far from home for the last 3 weeks. During this time, the heating was set to OFF but the boiler was ON during this time.
When I came back home the boiler was low in pressure (0.5bar), which I re-filled to get it to 1-1.2 bar.
I've purged all water radiators in the house today.
The problem:
The hot water system works perfectly, but the heating system is not working at all (it used to work before leaving).
Signals:
The boiler shows status code S.30 (thermostat blocking heating).
If I press the button on the thermostat receiver, the heating SEEMS to try to start, it turns on the icon of the heating pump (altough not the burner), and remains in S.7 (water pump inertia). It never starts the burner, and heating doesn't work. No error code is shown at any time.
I'm attaching some pictures for reference. I've recorded a video as well, that I couldn't attach so sharing in Photos: https://photos.app.goo.gl/UUE3sS5wHskFTLqz5
My current hypotheses:
1. The heating system pipeline frosted and water is not flowing properly
2. The heating system water pump is broken
3. The thermostat is not working properly
Can you please help me understand what is happening?
Thanks a lot in advance!!
I have a problem with my boiler that I've been unable to solve in the last 3hs. I hope you can help me.
My setup:
Family house, with Vaillant Turbotec Plus boiler + one VRT 230 thermostat
Context:
It's winter (with temperatures between -1 and 11ºC in the last week).
I've been far from home for the last 3 weeks. During this time, the heating was set to OFF but the boiler was ON during this time.
When I came back home the boiler was low in pressure (0.5bar), which I re-filled to get it to 1-1.2 bar.
I've purged all water radiators in the house today.
The problem:
The hot water system works perfectly, but the heating system is not working at all (it used to work before leaving).
Signals:
The boiler shows status code S.30 (thermostat blocking heating).
If I press the button on the thermostat receiver, the heating SEEMS to try to start, it turns on the icon of the heating pump (altough not the burner), and remains in S.7 (water pump inertia). It never starts the burner, and heating doesn't work. No error code is shown at any time.
I'm attaching some pictures for reference. I've recorded a video as well, that I couldn't attach so sharing in Photos: https://photos.app.goo.gl/UUE3sS5wHskFTLqz5
My current hypotheses:
1. The heating system pipeline frosted and water is not flowing properly
2. The heating system water pump is broken
3. The thermostat is not working properly
Can you please help me understand what is happening?
Thanks a lot in advance!!