Strom engineer?
Either way he should be able to test that as it'll most likely be an NTC with resistance table to look up.
Strom Electric Boiler no hot water
- Thread starter Sonic70
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Strom engineer?
Either way he should be able to test that as it'll most likely be an NTC with resistance table to look up.
Probably be 10kΩ
Warm it up measure resistance.
Let it cool then measure again, resistance should go up.
At 25°c see if it measures 10kΩ
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E7 on a Strom boiler usually points to a domestic hot water sensor fault or related wiring issue. Since heating works fine, the hot water circuit isn’t being detected properly. I’d check the flow sensor connections and possibly replace the sensor. Sometimes a reset clears it, but if persistent, a qualified engineer should inspect.
Update on the boiler. Wednesday the heating engineer finally replaced the triac board and the temp sensor as advised by Strom. Now when my nephew turns the hot tap on he tells me it throws up the same E7 code but then seems to right itself and then heat the water properly, he also says it does this when the boilers not heated any hot water for a while.
Is it under warranty?
Replace it.
You can lead a horse to water but a pencil must be lead!
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