Fujitsu Aoy30 Lnawl

[frank]

It would appear that some members think my comments were knocking Vaillant - far from it.

I was merely asking why a complete outdoor unit was replaced when surely spare parts would have sufficed.

Now that Jason has explained the situation, I can see why the decision was taken.

Obviously, the post by p_p did not make clear the whole story behind the decision to replace the outdoor unit, hence the query.

[Robin]

The 3 main heat producing components in the inverter , IPM,diode bridge & Active filter are, or should be screwed firmly to a heat sink & need a special heat transfer paste to allow the heat to be removed. If this was not replaced (or never put on) the expected life of the component is about 20 mins. Is it a possible problem with this unit??