Chiller Repair

Reliable Chiller Repair

Maximus Chillers know your chilling plant is critical to your success. When your chiller fails, or starts malfunctioning, our trained professionals will carry out service repairs that will get your chiller up and running as quickly as possible

At Maximus Chillers, we offer national and global chiller repair. We routinely prevent small problems from becoming big ones. We also offer comprehensive maintenance of chillers which you can read more about by following the link chiller maintenance

Our Service is second to none
When you call us for professional chiller repair: you rely on years of industry experience. If you have a factory, office, data centre, supermarket, laboratory, hospital or sports facility: we have the capability to repair your plant then keep it in good order

We carry an extensive range of commonly used parts, so you can rest assured that we will get your chiller running as quickly as possible. We offer next day delivery of specialist parts to ensure that you get the best service available

For years, we’ve offered this service that is second to none and we continue to maintain this reliable reputation. Whether you need a simple repair like a flow switch, or a compressor re-build, you won’t have to sacrifice your finances for quality of service

Our track record is impressive: we've earned the trust of our satisfied customers with quality work and the highest levels of professionalism- you can trust in our ability!

To schedule chiller repair or to learn more about our services, call 0161 327 2838 You can also fill out our Web Enquiry with any queries and we’ll get back to you within the hour

Cylinder into Cylinder
Cylinder into Cylinder

Refrigerant Handling

Environmental Agency registered, 
F-gas Company Certificate and BESA Ammonia Handling

See Below



ACRIB certified engineers and BSEN378 pressure testing

See Below

Process Application
Process Application

Process Chillers

Maximus Chillers Ltd. is a leading company in the repair and overhaul of process chillers. Many customers come over to us after being told to replace the chiller we then get it up and running!
Process chillers are used in a diverse range of applications. Some of these include:
• Plastic injection moulding- to cool the mould
• laser cutters- in steel fabrication plants
• Machining tools- to cool the oil
• Chemical production- to achieve a desired temperature in the process
• Laboratories- to cool down x-ray machines and other scientific equipment
Whatever your requirements we will keep the plant running to keep you in seamless operation. Repairs can also be arranged during factory shut-down to ensure minimum disruption

Centrif. Re-builds and Shaft Seal Replacement
Centrif. Re-builds and Shaft Seal Replacement

Compressor Re-builds

We arrange the lift and shift, then re-manufacture your compressor in our work shop:

Strip Down
All the parts are laid out on the bench and the bolts immersed in oil

All parts are inspected for wear and tear and a list of required replacement parts is written

When the parts come in, we re-build the compressor using new gaskets and ‘o’ rings
The Clearance of the Bearing We check this with a feeler gauge and ‘lap’ the bearing where necessary. Not enough oil lubrication will reduce its life
The ‘Run-out’ of the Shaft We check this with a ‘thou clock’ If the shaft is not spinning true this will also reduce the life of the bearing
Re-assembly The reverse of the strip-down. All screws are tightened to the correct torque with a torque wrench. The compressor is then pressure tested and de-hydrated with a vacuum pump. The correct amount of oil is drawn in- usually whatever the level was when it came in, or half way up the sight glass. Last but not least- the compressor is sanded down and re-painted battle ship grey


Carel Controller
Carel Controller


R22 Phase Out
This refrigerant can no longer be purchased. There is also a service ban on this refrigerant so you cannot break into the system to carry out repairs. R22 runs on mineral oil, but will also run on synthetic oil- used for R407c. The oil is changed first so that the mineral oil, migrating round the system, has time to return back to the compressor. The refrigerant is then decanted. The oil is changed again and R407c is charged into the system

PLCs or Programmable Logic Controllers
Manufacturers can ask controls companies to sell them controllers with their own software installed. If so, when you attempt to put the same model of controller on- the inputs and outputs won't line up. Therefore, the chiller needs to have a Carel controller installed. It needs to be rewired according to the new controller. The wiring is wiring disconnected. The transducers and sensors are replaced with new. The new controller is installed wire by wire. The machine is then run tested and goes into seamless operation

Chiller Compressors
As above, if a compressor is no longer manufactured- a retrofit is required. Compressor retrofits are relatively easy. The capacity in kilowatts is worked out and a compressor of the same capacity is selected. The machine is pumped down and ancillaries removed. A lift and shift is arranged and the compressor is lifted out. The mounting is adapted for the new compressor and the new one lifted in; pipework is also adapted. After pressure testing, the new compressor is now run tested


A large proportion of leaks are caused by poor brazing. Work hardened and corroded copper needs to be made just like new to stop leaks re-occurring. Instead of just brazing the component up, we completely remove it. Where pipe work is being adapted, old copper pipe is annealed (heat treated) to make it soft and malleable. It is de-greased, cleaned up with emery cloth then cleaned a second time with a clean wire brush. Our team of engineers are ACRIB trained and certified with years of industry experience. The system is then pressure tested to BSEN 378 to ensure the integrity of the system

Refrigerant Handling

Ozone layer and Global Warming
We all remember when the hole in the ozone layer was discovered. It was found to be caused by chlorine in the rerfigerant. Chlorine takes a long time to break down in the high atmosphere. Therefore CFCs (chlorofluorocarbons) were phased down then banned. HCFCs (hydrochlorofluorocarbons) were used as a stepping stone until chlorine-free refrigerants were developed. HCFCs too have been phased down and banned. Now we are using HFCs (hydrofluorocarbons) Although they do not contain chlorine- they have high GWP (global warming potential) so they too are being phased down
Engineer Training
Because of the above, the industry has demanded better and better engineers. All our engineers go through 4 years at college to achieve City&Guilds/ NVQ 3 in Complex Systems. By law, they are put through F-gas training and certification. They are also BESA Ammonia trained. All this is to educate the engineers and the customer in the correct way to recover and dispose of refrigerant safely

Call Out

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