Another Vaillant Turbomax no heating!!

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simples43

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• 7 Nov 2006

• #1

I've recently moved into a house which contains a Vaillant turbomax combi. System was installed 3 years ago. The heating and hot water have been working fine until today!! I've set the timer for the heating to come on at 5pm which it did, rooms all nice a warm, then at 6pm I noticed the heating had switched off, which it wasn't due to until 8:30pm. I've checked the system, the clock, hot water is fine, but not heating. There is a switch to have the heating on all the time, tried that, nothing.

Would welcome any help/advice.

 

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sime10

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• 7 Nov 2006

• #2

Which turbomax, What clock mechanical or digital?

 

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simples43

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• 7 Nov 2006

• #3

hi sime10,

its the turbomax 242 according to the log book. clock is mechaincal.

 

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sime10

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• 7 Nov 2006

• #4

It sounds like it could need a replacment time clock but I couldn't be 100%

 

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bobw1956

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• 7 Nov 2006

• #5

Try selecting heating,

press the "i" and "+" buttons simultaneously, the display will show "d.0" use the "+" button to scroll to "d35". what is now displayed when you press the "i" button
o= heating
1= hot water

If its showing "1" the problem is the diverter valve

 

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simples43

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• 9 Nov 2006

• #6

Guys,

Thank you for your replys. Managed to sort the problem after caryying out some investigations. Turned out to be the Room Thermostat, out of all things!!

Some one left the thermostat under the table lamp hence it was reading the temp from the light, and then switched off the heating system as it thought the room was too HOT!! (I blame the misses) should never had switched on the table lamp!