To those of you who charge to repair on the first appointment, how do you know with certainty what's wrong with the boiler if you haven't seen it first? Do you keep loads of spares in your van?
Nope usually check and check again and if unsure tell them maybe second fault something deeper but need to repair A to see if fault B exists.Never guarantee what your saying just in case e.g phone worcester tech help they never guarantee when they go through the little speech they have prior.