SUMMARY

Thermostatic Cartridge for Alsons 2003BX 3/4 Inch Thermostatic Rough-In Valves

Basic Shower Repair Tips: Replacing the Thermostatic Cartridge for Alsons 2003BX 3/4" Thermostatic Rough-In Valves

This spare part – thermostatic cartridge for Alsons 2003BX – is essential to long-term shower valve maintenance. Below are a few tips and tricks written for homeowners who are taking the challenge of doing a DIY shower repair.

– Isolation Screws: Once the handle/s and wall plate of the valve is taken out, the isolation screw sits in the middle of each of the hexagonal nut on the sides of the thermostatic cartridge for Alsons 2003BX. Water supplies can be isolated by using a screwdriver on the screws and turning it clockwise until it tightens; be careful not to overdo the tightening. This should cut off the Alsons 2003BX shower water flow for a safe thermostatic cartridge replacement.

Before proceeding to remove the faulty cartridge, test to check if isolation is successful. Make sure that you are not under any water outlet then lay the handle on top of the cartridge splines and turn it fully anti-clockwise and clockwise. Should there be no water flow isolation is achieved.

When turning the water supplies back on, use the screwdriver to turn the isolation screws anti-clockwise to loosen it. Do not loosen it too much. The head of the screw must be only slightly higher than the surface of the hexagonal nut.

– Temperature Stop Ring: There is a raised portion, called “stop”, on the white temperature stop ring of the thermostatic cartridge for Alsons 2003BX valves. Remember the stop position. It must be put back in the same place during reassembly.

– To Discard or not to Discard: The faulty cartridge can either be discarded or kept as reference for future shower maintenance or repair.

– Grease Up: The thermostatic cartridge for Alsons 2003BX ¾ inch rough-in valves has three rubber O-rings or seals. A heat-resistant, silicone-based lubricant formulated for plumbing must be applied to these rubber rings to help it squeeze and seal in the valve. Other lubricants, such as oil-based ones, can deteriorate the O-rings faster than greased lightning.

Please scroll through until the last section to see the plumbing grease we supply.

Common Questions About the Thermostatic Cartridge for Alsons 2003BX 3/4" Thermostatic Rough-In Valves

The thermostatic cartridge for the 3/4 inch Alsons 2003BX rough-in valves has three O-rings, two tiers of splines, and two gauze filters. This shower valve part is the solution for problems linked to a broken or spent temperature control cartridges.

Question: I’m having problems with decreasing water flow rate. What could cause the problem and is this the Alsons 2003BX shower valve part I need?
Answer: Yes, if the cartridge is the one that’s leading to the problem. This thermostatic cartridge for Alsons 2003BX rough-in valve is the part needed to get the shower flow rate back at 40 PSI, 17 gallons per minute.

What causes the problem could be a clog in the thermostatic cartridge that blocks the flow of water from the supply lines to the shower head.

Question: Our shower is failing to adjust water temperature. The valve in question has a 3/4 BSP. Will this cartridge work with it?
Answer: Please send us a photo of the valve and our very helpful spares experts will be more than happy to find the thermostatic cartridge you need. Queries received during the weekend will be attended to come Monday.

Question: There’s a clicking sound every time the temperature control knob is turned. Is this normal?
Answer: Shower valves are not meant to “click” with a turn of the control handle. A cartridge that broke inside the valve might be what’s making the sound.


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FAST DELIVERY

• Delivery of this item is priced as a 'small' packet. UK delivery costs £5.95.
• For all in-stock spare parts the typical UK delivery timescale is 2-5 working days.
• If you need a part urgently then we can provide a next-day (delivered Mon-Fri) UK delivery service for all in-stock small parcels ordered before 3.30pm, Monday - Friday.
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RETURNS

• If you need to return a part then please telephone Di Vapor on 0121 705 0866 with the reasons for the return within 14 days of receiving the goods.
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