diverter valve

Hi Everyone, I have a question with regards to a specific requirement I have for an electric 3 way diverter 28mm valve on an ASHP installation? As far as I know most 3 way valves are configured so the flow comes into the bottom of the 3 way valve (Inlet: C) and then the water either flows out...

Hi, I'm looking for help please with identification of the make and model of attached bath unit. I'd like to replace the diverter valve if possible. Or should I just replace the whole unit? Thanks in advance.

Hi, My boiler has been working fine for years, until yesterday when I had no CH and an 8 displayed. After spending the next 12 hours on here and other sites, I have identified the following. I am looking for suggestions as a few plumbers that I have called won’t entertain it and would only...

I have a vaillant ecotec plus 630 boiler. The hot water is not working correctly. Sometimes HW will come on when programmed but not always. HW does come on when the heating and hot water are both programmed to be on. HW is now coming on when the Heating is on but HW should be off. I can...

My old system boiler (16yo) is setup in S-Plan configuration. I want to get a new Worcester system and Easy Control (finer control with modulation/condensing.) I understand DHW has to be heated to over 65deg but I would like my heating flow temperature to be much lower particularly in the...

Hi all, Been having a strange whining/humming noise coming from my boiler. (Combi boiler - Ferroli i25). When the system is on and all radiators are on full heat it works perfectly, however when one is turned down the boiler makes a fairly loud vibrating/whining/straining noise, and when that...

What causes the diverter valve to operate? I have replaced mine a couple of times, but the rads still getting warm when I draw hot water. I assume the diverter valve is not operating. But what triggers it to shut off?. I'm looking for a problem earlier on in the process I guess?

Hi there. [I'm new to combi boiler problems, so I might not be explaining myself correctly.] Over the past three weeks I've started losing central heating pressure. Starting from 2.0 bar, it drops to 0.5 bar over 24 hours. I've checked the radiators and all seems okay. I know that everyone...

I have a service contract with WB for this boiler. Would a scaled up secondary heat exchanger be covered? For some years now our radiators have been getting hot in summer. In 2018 they changed the 3 way valve head. In 2019 they changed the complete 3 way valve. It still did it. In 2020 a...

Info: Worcester Greenstar Heatslave Drayton MA1 Mid Position Valve Actuator Summary: Had to replace the valve actuator as the old one was sticking. Wired up the new one with the same pinout as the original. Tested but got the following failed outcome; Off = DHW Water On = DHW Heating On = CH +...

Hi. I am having an issue with a baxi 105he. I want to refurb the diverter valve as we are having issues with HW.. I have isolated the cold water feed into boiler drained the primary system "rads" even though this is not needed drained the boiler turned the hot taps on upstais downstairs still...

Hi Peeps. Recently my Boiler has stopped delivering hot water, (The heating works fine) and after much research I discovered that the Diverter valve was the likely suspect. So I checked to see if the microswitch was being depressed by the plastic arm when the hot water taps were open... hardly...

Hello, I have a vaillant boiler plus a hot water tank. I changed diverter valve 3 years ago because it did not move correctly. For a month now I have had a new problem with this diverter valve but slightly different and I can not find the cause. The valve works perfectly for central heating /...

My mom has a Biasi M90B 24S, (construction year 2009), previously she had several problems with this combi boiler, every now and then it needed a HE cleaning, sometimes CH wasn't operating, other times HW. Lately she experienced the following: - How water through the taps came in waves: hot for...

We moved into this house a year ago and soon discovered that there was a leak in the wall when the shower diverter is set to the wall shower head, rather than the dumper head. Through trial and error, we have discovered that the concealed shower model is a Hudson Reed Clio A3025 which has an...

Hi, I've got an old Potterton Puma. At the moment the heating is working fine, but the hot water only works when the heating is on. When the heating is not on, turning on the hot tap will fire up the boiler but the hot water is going to the radiators. Is this likely to be a problem with my...

I posted this question in September: https://www.diynot.com/diy/threads/diverter-valve.509393/ The answerer talked about diverter valves and cartridges. I have a few questions: 1) What the difference is between a diverter valve and a cartridge? 2) Why could the cartridge fail independently of...

My aged parents passed away and their house will be unoccupied over the winder. I was advised to set the heating to come on briefly once a day to protect the system and the fabric of the house. However, I do not want to heat the hot water cylinder every day and would prefer just to send some...

I have a Potterton combi boiler and about three years ago I noticed that the central heating was activated when the water only was activated i.e. the radiators would heat up. About 2.7 years ago the diverter valve was replaced in my Potterton Boiler by a local plumbing company (see linked...

Long shot i know but im having a problem with a Biasi m90 32. I can only have either ch or hot water and I only achive that by moving the wires on the diverter, Ive had the diverter changed and the the wiring to the diverter changed and the circuit board changed, any ideas on what it may be?