Hewett Air Conditioning Ltd

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Hewett Air Conditioning Ltd Hewett Air Conditioning Ltd has been operating for over 30 years, as a specialist air conditioning partner to the Tv, Audio & Post Production industries.

Out with the old leaky coil, clean up of the drip tray. And replace the suction connection on the outdoor as the schried...
17/09/2026

Out with the old leaky coil, clean up of the drip tray.
And replace the suction connection on the outdoor as the schrieder had broken. Lovely cool studio Studios Wardour Street.

Not a good start to Monday!New one on order!
13/07/2026

Not a good start to Monday!
New one on order!

Fault finding on a Daikin 5 way multi today in Datchworth today.System error saying short of gas . Recovered short of wh...
10/07/2026

Fault finding on a Daikin 5 way multi today in Datchworth today.
System error saying short of gas .
Recovered short of what the system should be charged with but no additional charge information from the install!
Pressure tested and held for 4hrs, evacuated down to a good torr held and didn't rise.
Recharged with the correct amount of refrigerant as best we can work out.
System running all units cooling on test.
I had a new helper today, meet Rufus🐾

Replacing a faulty pump in the least accessible unit I have been to in a while!Not sure how effective the system will be...
09/07/2026

Replacing a faulty pump in the least accessible unit I have been to in a while!
Not sure how effective the system will be but at least it isn't leaking anymore!

Even under a gazebo the cold and wet has got to me!Multi system commissioned despite the sparks leaving a neutral floati...
03/02/2026

Even under a gazebo the cold and wet has got to me!
Multi system commissioned despite the sparks leaving a neutral floating in the isolator!
Split can wait for another day, still plenty to do on site!

Call out to a leaking unit, the diagnosis didn't take too long!Replacement ordered and on the way.
02/02/2026

Call out to a leaking unit, the diagnosis didn't take too long!
Replacement ordered and on the way.

Definitely colder inside today than it is outside!Second visit to install 4 Toshiba indoor units ready for the outdoor u...
28/01/2026

Definitely colder inside today than it is outside!
Second visit to install 4 Toshiba indoor units ready for the outdoor unit install soon.
First time using these Toshiba Haori units, very impressed with ease of installation and the choice of cover colours available.

After several jobs at the same site all waste waiting to be taken away by an approved waste carrier.Leaving the site cle...
23/01/2026

After several jobs at the same site all waste waiting to be taken away by an approved waste carrier.
Leaving the site clean and tidy.

Faulty inverter PCB diagnosed on this Mitsubishi VRF City Multi.Waiting for a quote from Mitsubishi to give to the custo...
07/01/2026

Faulty inverter PCB diagnosed on this Mitsubishi VRF City Multi.
Waiting for a quote from Mitsubishi to give to the customer.
Fault finding in this weather is not fun!

Shiny new liquid line shut off valve to replace the leaking one.
27/11/2025

Shiny new liquid line shut off valve to replace the leaking one.

Address

Stevenage
SG27LG

Telephone

+441438869594

Website

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