Repairs
Air Conditioning Fault Diagnosis & Repairs
Professional fault diagnosis and repair support for domestic and commercial air conditioning systems.
How We Approach Repairs
Finding the Fault, Explaining the Options
When a system isn’t performing as it should, we investigate the fault methodically, explain what we find in plain terms, and set out the options for repair. Where a repair isn’t economical, we’ll advise on replacement instead, for homes and businesses across North West England.
- System fault investigation
- Error code assessment
- Electrical and controls checks
- Condensate and drainage faults
- Refrigerant-related diagnosis
- Component testing
- Repair recommendations
- Replacement advice where repair is not economical
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What's Included
A Clear Path From Fault to Fix
Initial fault assessment
Visual inspection
Controller and error-code checks
Electrical testing where appropriate
Operational testing
Clear explanation of findings
Written repair recommendation
Quotation for follow-on work where required
Why Choose ACE Climate
Diagnosis You Can Trust
20+ Years Industry Experience
Decades of hands-on air conditioning and HVAC expertise.
Clear, Honest Diagnosis
Straightforward findings before any repair work proceeds.
Domestic & Commercial
Fault diagnosis for homes and businesses alike.
Symptoms
What Is Your System Doing?
You do not need to diagnose the fault yourself — describing the symptom is enough for us to know what to bring. These are the ones we are called out to most often.
Running but not cooling
The unit is on and the fan is turning, but the air is not cold. We check the controller and mode settings, airflow, the outdoor unit's operation and the refrigerant circuit.
Water dripping indoors
Almost always the condensate route rather than the unit itself — a blocked drain, a failed pump or a fall that has been disturbed. Switch the unit off and place something underneath until we can look.
An error code on the controller
Photograph the code before clearing it. Codes are manufacturer-specific and often tell us which component to bring before we set off.
Tripping the electrics
Leave it off and call us. Repeatedly resetting a breaker that keeps tripping is not safe, and the fault will not clear itself.
Noisy, rattling or vibrating
Fan bearings, loose panels, mounting brackets and debris in the outdoor unit are all common. Noise that has changed suddenly is worth reporting early.
Smells when it runs
Usually the filters, coil or drainage — the parts of the system that handle moisture and dust. A routine service often resolves it.
Heating but not cooling (or the reverse)
A heat pump that works in one mode but not the other narrows the fault considerably. Tell us which mode fails.
Turning itself off
Short-cycling or shutting down on a protection fault. We check controls, sensors, airflow and the outdoor unit's environment.
It worked last summer
A system left idle for months often needs a service rather than a repair. We will tell you which it is before doing the work.
Before You Call
What to Have Ready
None of this is essential — tell us what you can. But the more of it we have up front, the better the chance the right part is on the van the first time, which is usually the difference between one visit and two.
- Make and model
- Usually on a label on the indoor unit, or on the outdoor unit's data plate. A photo is easier than transcribing it.
- Any fault code
- Photograph the controller display before clearing the code — it is often the single most useful thing you can send.
- Photos
- The indoor unit, the outdoor unit and anything visibly wrong. Water, ice and damage all show up clearly in a photo.
- Does it power on at all?
- A system with no power is a different visit from one that runs but underperforms.
- Where the equipment is
- Full address and postcode, and roughly where in the building the indoor and outdoor units sit.
- Access restrictions
- Scaffolding or roof access, a flat roof, gated parking, key holders, security passes, or hours we are not allowed on site.
Report a fault
Send us the details and we will come back to you to arrange a visit. The enquiry form below opens with “Repair” already selected.
Describe the faultSystem down and business affected?
Call us rather than using the form. We will tell you honestly when we can get to you.
Call 07856 958589Already an ACE Climate customer?
Report the fault from your account and it arrives attached to the right site and equipment, with your service history already alongside it.
Customer LoginRelated services
A repair is sometimes not the right answer. These are the routes that usually come next.
Experiencing a Fault?
Tell us what the system is doing and we'll investigate the issue and explain your options clearly, including when a repair is not worth doing.