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PS, with regard to the speed of return of the rod, I must admit I have not looked. I will check this tonight.

I removed the fan from the upper casing, but that is as far as I went. I had access to the venturi tubes from the silicon pipe exit on the horizontal pipe, and from the opening on the vertical. I think I got it all off from inside with my small file. With regard to the slow fan stopping. When...

Hello, here to make an apology.... (hanging head low) After talking to a my plumber he said it would be ok for me to have a look myself, if I got stuck, he would come round. All went well. The venturi pipes didn't have much crust on them. More could be found on the outside of the pipes which...

Hi all, ok, message received and point taken. I will ask my corgi man to look at the venturi first. He doesn't want to, but then again the advice on this site is not oriented towards cash at the end of the day. Looking at the manual, it looks like just a case of taking the burner front...

Hi All. Its time to call my Corgi man in. From all comments here, I think I will ask him to replace the DHW Heat Exchanger. I would prefer a new one over a cleaned one especially as I have read that they do not last for ever. With regard to the fan, it stopped again this morning when the...

I'm not really messing, just looking. Being an Electronic Engineer, I'm up on electrics, but don't touch anything else. I could see the fan blades by looking up through the burner chamber. They looked ok. The silicon pipe was in good condition with no deposits. I think I may be missing the...

Gave the Venturi a visual. The pipes were clean, and the relay clicked in and out with a slight blow on a pipe. The fan was very free and was taking around 20 seconds to stop once turned off. Connections seemed ok. I can't get the fault to occur when I test it out! All I can think of...

hhmm, he didn't do any tests apart from run the boiler. + this morning, the Mrs turned the hot tap on for a few seconds and after that..... the fan stopped. I then ran the water for longer to let the boiler kick in. Following this the fan started again. "oh poo" was my comment! as I was sure...

Hi.. I carried out a visual inspection of the slow fan resistor. One of the wires was hanging on by a tiny piece of plastic sleeve! The other one seemed better, but I removed the resistor anyway. Its value was ok, so I cleaned up the terminals and re-soldered the wires. I had to cut back and...

Firstly, thank you all for your help. I have found it very interesting trying to figure out what is wrong with my boiler, and to run my thoughts and also things I have been told by my plumber past a larger group. I have certainly learnt lots this week. (just wish one of you was near Great...

its a Vokera Excell 80SP, I was concerned about the risk of air getting into the heat exchanger. The installation guide said to avoid it if possible, but I had never seen it in any other installation manuals I have been looking at for new boilers. (it got me wondering)...

Is it normal for a combi boiler be fitted at the highest point in a complete circuit? ie all pipework for radiators and taps below, or should you have a higher radiator to allow bleeding. thanks, Alex.

What do you think the faults are? who makes the mini HE? thanks, Alex.

4 weeks ago, 10 year old boiler moved from downstairs to upstairs due to pending extension, All ok. last week, DHW started going hot, then cold in loops. Friday morning, system operating normally with steady DHW, Friday night, fault returned. Saturday Morning 8am, Idle fan was off!, only...

Called my Corgi Guy, He thinks it could be the Heat exchanger (£80) or a sensor (£7) he asked me to run the central heating side tonight. If the temperature is also low, then it could be the sensor, or if its normal, then it could be a blocked heat exchanger. He advised that it is better to...

Excel rings a bell.. :)

(thanks for your comments Chris) no chemical was used, he just used mains water pressure and went round the house switching each radiator on in turn until the water ran clean. Could debris in the system affect the burning? perhaps thats why it was ok this morning.. it may have moved on. I do...

The boiler was moved upstairs by a Corgi guy and has been registered etc. I helped out with flushing of the whole system. Its about 8 years old. (don't have the boiler number with me) I was at the wet end of the flush when we did each radiator. The water went grey for a few moments, then went...

Yesterday, my Vokere non condencing boiler had a fault. In hot water mode, the water would come through hot, then over a minute or so, would go cold again, then it would go hot, then repeat over and over. The flame seemed to be either on or off and the temperature dial was getting to just...

Thanks Adam