Chiller servicing, fault finding and repairs
We service and repair chillers used for chilled water air conditioning and process cooling across Greater Manchester and Yorkshire, from air-cooled packaged units on the roof to machines in the plant room. When a chiller trips, the building or the production line it feeds usually stops with it, so our first job is finding the cause. Then we fix it and leave you a written record of what we found.
Chilled water and process cooling
A comfort cooling chiller makes cold water and pumps it round fan coil units or air handlers in the building. A process chiller does the same job for machinery, moulds, tanks or production equipment, where the temperature it holds can affect the product.
Both rely on the same basics: the refrigeration circuit, the heat exchangers, the water side and the controls. Problems on the water side, like low flow, air in the system or a fouled heat exchanger, cause plenty of chiller trips that look like refrigeration faults at first.
Fault finding
We start with the alarm history and the operating readings: pressures, temperatures, flow and current draw. That usually shows whether the fault is refrigeration, water side, electrical or controls, and saves replacing parts on a guess.
Common causes we see are dirty air-cooled condenser coils, failing fans, flow switch faults, refrigerant leaks and compressors cutting out on high pressure.
Servicing
A service covers condenser coil cleaning, refrigerant and leak checks, electrical connections, compressor readings, water flow and temperature checks, and a look at the controls and safety devices. Chillers usually hold enough refrigerant to fall under F-Gas leak check rules, and we're F-Gas certified through Refcom. Every visit ends with a written report emailed to you with readings, checks and photos.
Questions we get asked
How often should a chiller be serviced?
Most chillers need at least one full service a year, and those running hard all year or doing process work usually need more. The F-Gas leak check frequency for your chiller depends on its refrigerant charge, which we'd confirm on the first visit.
My chiller keeps tripping on high pressure. What causes that?
Often a dirty condenser coil, a failed condenser fan or the chiller sitting somewhere it can't get rid of its heat. It can also be an overcharge or air in the refrigerant circuit, which needs an engineer to check.
Do you work on chillers you didn't install?
Yes. Most of our chiller work is servicing and repairing equipment that someone else installed.
