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Mend Thelia

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We have 8 questions about mending 'thelia' in category Heating, Convector Heaters

How to mend Thelia

Mend fault work checked

Saunier thelia 23 boiler not igniting?

I have a fault on the boiler, Everything seems to work but it will not ignite. I have checked the voltage to t... [Read more]
Mend heating water problem

no heating or hot water? suniar duval thelia 23e?

The problem seems to be the clock/programmer. With the slector switch set to 'auto' the display will normally ... [Read more]
Mend relight water hot

Saunier Duval Thelia 23E. Cannot relight?

Simply stopped heating water. Had a hot shower, had breakfast, but no hot washing up water. Boiler makes noise... [Read more]
Mend thelia 23 water
3

Saunier Duval Thelia 23- no heating/hot water?

The problem seems to be the clock/programmer. With the slector switch set to 'auto' the display will normally... [Read more]
Mend fires normal hot
2

How can I fix the boiler?

My boiler fires up as normal, however I have intermittent hot water while using the shower or bath. The hot wa... [Read more]
Mend saunier duval thelia 23
8

saunier duval thelia 23?

new house - dead boiler. I have replaced the diverter valve & piece which it mounts to, now the micro switches... [Read more]
Mend hot water warm rate
1

thelia 623?

i have a thelia 623 combi.the hot water comes through only warm i have slowed the water rate down as much as p... [Read more]
Mend boiler pump top
1

How do i fix Saunier Duval boiler - Model Thelia 623?

I have water seapage from the pump around the top of the serrated brass cap at the top of the pump (to the fro... [Read more]

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