The Report
What the homeowner told us
AC not cooling below 80 when set to 74. I can hear the fan blowing but don’t feel any air coming out.
Repair · Phoenix
Transformer Replacement in Phoenix — August 2023
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Reported by the Homeowner
AC not cooling below 80 when set to 74. I can hear the fan blowing but don’t feel any air coming out.
Phoenix homeowner · August 22, 2023
Findings & Work Performed
What our technician documented during the visit
No 24V output from transformer despite good 240V input; thermostat not sending Y1.
Replaced transformer; replaced existing thermostat with T4.
The Verification
Verification performed
Unit is now cooling; splitting 18°.
— Related Services
How this repair fits into our Phoenix HVAC service
This repair is one example of the AC Repair & Maintenance work AZ Perfect Comfort performs across Phoenix, AZ. You can browse every case study we have published for this type of work in the Transformer Replacement case studies archive. Homeowners who join our Comfort Club maintenance membership get every eligible repair backed by our Lifetime Repair Guarantee. For larger repairs and replacements, financing options are available for qualifying projects.
— Parts & Work Performed
Exactly what was installed
| Item | Description | Qty | Price |
|---|---|---|---|
| Trip charge to travel to customer home; waived with paid repair during normal business hours. | 1 | $49.98 | |
| Charge waived with performed and paid repair or service during standard hours. | 1 | $-99.95 | |
| Remove existing transformer and wiring; install new 75VA 120/208/240V to 24V transformer; test system operation. | 1 | $310.46 | |
| Remove existing thermostat and install new basic programmable thermostat; test system operations. | 1 | $279.85 |
Total: $540.34
— Photo Documentation
4 photos from this repair
Every step of this repair was documented on-site by our technician.
— Frequently Asked
Questions about this repair
What was documented about the HVAC system?
No 24V output from transformer despite good 240V input; thermostat not sending Y1.
Does AZ Perfect Comfort service Phoenix?
Yes. AZ Perfect Comfort services Phoenix and the greater Phoenix Metro area. Call (602) 613-3489 to schedule.
Are these repairs guaranteed?
AZ Perfect Comfort Diamond Members receive our Lifetime Repair Guarantee — if the same failure returns, the repair is on us. All other repairs are covered by our standard workmanship warranty. Ask your technician about becoming a Diamond Member to unlock the lifetime guarantee.
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