Valve repair kit for Schroedahl leak-off valve

Steam Boiler Water Feeder Valve Repair FAQs

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It does not say, what causes high level of water in the steam boiler. ... High pH in your water supply can cause foaming and water feeder troubles; .... I have a clearenough understanding of the condition of your water feed valve .... My system has separate McDonnell and Miller automatic water feeder and Low water cut off.

Steam boiler Automatic & Manual Water Feeder Valves

The squealing sound generally comes from a circulator pump, if it has a drive coupling between motor and impeller housing there is an oil cup/or oil hole, add oil until it is full! If it is a cartridge style circulator you may have to replace it.

Sometimes air in a system will cause this squeal noise as well. Purging the air out of system may be required. If you need to know how to purge a system there is a good pdf file at this link for $8.95 The Basics of Purging Air
From your Forced Hot Water System
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Troubleshooting A Leaking Boiler
Relief Valve
Miller Furnace Books Repair

The Expansion tank is factory set to 12 psi and the only way to tell if it remains with 12 psi is to drop the system pressure to zero and check the tank with a pressure gauge. If water comes out the air valvestem when you apply the pressure gauge, the tank is bad, replace it! If there is less then 12 psi on the tank add air to 12 psi and open water valves back up to normal operating pressure. Usually the feed valve will automatically stop at the preset setting.If the boiler is leaking water out any relieve valve drains, the feed valve, relief valve and or expansion tank may need to be replaced.

It sounds like you have broken or damaged o-rings inside the gun and the only repair is to replace them. Senco does make kits to rebuild most of their guns. Go to http://www.senco.com/ and click on 'Parts Charts' at the top of the page then find your model. The PARTS GUIDE will list a rebuild kit if one is available. The part number will start with YK followed by four numbers. If there isn't a rebuild kit available for your gun, you'll have to order each o-ring seperately. All o-ring part numbers start with LB.

Hi
There are a few things that will leak on the left side
1. The boiler can leak if not descaled regularly or properly.
2. The steam boiler can start leaking around the o-ring gaskets or tubes.
3. The steam valve o-ring can wear out and leak.
Boiler will show whitish scale between the halves and will need to be replaced. The others are just replacing the seals or tubes.

Hello,One of three things #1the valve is bad & leaking.#2 the boiler feed valve is by-passing and not shutting off.#3 the expansion tank is waterlogged and can not function.

Hello,I hope you plan to change it.The boiler feed valve could be hard to locate as each installation in unique.Best to shut off HOUSE main and wait till boiler pressure drops and leak stops.Then it will be safe to work on.

There are two things that can cause the shower valve to leak. One is calicum build up on the vlve parts and the other is the O-rings are worn out. Turn water off that feeds the shower and remove the handle on the shower valve then remove the cover that covers the valve body, next find a wrench that will fit the outside of the valve core and remove the core with stem of the valve. Go to any hardwate store and buy a new gasket kit or o ring kit. This is avaliblity at any hardware store.

Your boiler is overdue for a service.

Combi boilers are unlike regular boilers in that they have quite a few moving parts, it's vital that these are serviced annually if you want the boiler to remain reliable and to avoid expensive failures.

In your case, the diverter valve has most likely failed. Normally, when the heating is on this senses when there's a demand for hot water and temporarily diverts the primary hot water circuit to feed the domestic hot water heat exchanger. When the demand for hot water ceases the primary hot water circuit is diverted back to the central heating heat exchanger. The valve has a number of moving parts including a rubber diaphragm which can wear out and split and moving shafts which can seize.

When the valve fails it can leak and also can divert hot water to the central heating heat exchanger when hot water is used. The reason that only the highest radiators in the system are affected is probably because the failed valve does not necessarily cause the central heating pump to activate and circulate the hot water throughout the system (it does on some boilers though). If hot water is introduced into a cold heating system it will rise via convection to the highest points in the system like an old fashioned gravity circulation system which was unpumped.

Call a heating engineer out as soon as possible; I'm not going to advise how to do the repair yourself as gas appliances MUST be serviced by qualified persons only for reasons of safety. If you're lucky then the valve simply needs cleaning up and a few new diaphragms plus other minor seals and rings. If it's gone too far then the valve and possibly the manifold it's attached to will need to be replaced.

In the UK the part alone typically costs between £100 to £200 depending on whether it's just the valve or the manifold as well. The diaphragm kit typically costs up to around £15 and is routinely fitted when the boiler is annually serviced, and a new valve will already have new diaphragms fitted. For a routine service expect to pay for up to two hours labour (many can be done in one hour), but if the valve/manifold have failed it will be longer as one failure often causes other parts to need further inspection/repair.

I hope that I've helped you today, if so please return the favour by rating my answer.

it sounds like the gland on the valve is leaking unusual in a valve so young but it does happen. is the valve electrical operated or water pressure. you should be able to get a complete diaphram kit with all seals etc .

Hi,

Do you have any type number on the machine?