Myson Power Extra MPE 322
I wonder if anyone can help me?
About 18 months ago we had a new Myson Power Extra MPE 322 three port valve fitted, and I don’t think it has ever worked properly, let me explain... It was fitted during the summer so I didn’t notice the following problem with the hot water until the following winter when we needed the heating on as well, & since then we have just lived with it, but it's now becoming a real pain...
Here is what’s happening: - On the boiler (Potterton Suprima 30) there is a very basic programmer that just has CH on – off – timed & HW on- off- timed.
• When the heating is turned off at the programmer & the water is on, the HW light comes on the Myson & heats the water without any problem.
• When the Hot Water is turned off at the programmer & the heating is on, the CH light comes on the Myson & heats the radiators without any problem.
• When the Hot Water is turned on at the programmer & the heating is then turned on as well, both the CH & HW lights on the Myson come on & we have heat & Hot water... BUT
• When the heating is turned on at the programmer & then we put the Hot water on as well, only the CH light on the Myson comes on & NOT the HW light & the water is not heated?
I don’t know if this is a wiring problem with the Myson, a fault with it, or even a problem with some other part of the system altogether... any ideas would be appreciated before I spend a fortune trying to sort it out?
I wonder if anyone can help me?
About 18 months ago we had a new Myson Power Extra MPE 322 three port valve fitted, and I don’t think it has ever worked properly, let me explain... It was fitted during the summer so I didn’t notice the following problem with the hot water until the following winter when we needed the heating on as well, & since then we have just lived with it, but it's now becoming a real pain...
Here is what’s happening: - On the boiler (Potterton Suprima 30) there is a very basic programmer that just has CH on – off – timed & HW on- off- timed.
• When the heating is turned off at the programmer & the water is on, the HW light comes on the Myson & heats the water without any problem.
• When the Hot Water is turned off at the programmer & the heating is on, the CH light comes on the Myson & heats the radiators without any problem.
• When the Hot Water is turned on at the programmer & the heating is then turned on as well, both the CH & HW lights on the Myson come on & we have heat & Hot water... BUT
• When the heating is turned on at the programmer & then we put the Hot water on as well, only the CH light on the Myson comes on & NOT the HW light & the water is not heated?
I don’t know if this is a wiring problem with the Myson, a fault with it, or even a problem with some other part of the system altogether... any ideas would be appreciated before I spend a fortune trying to sort it out?