The Report
What the homeowner told us
System running but not cooling.
Repair · Glendale
Control Board Replacement in Glendale — June 2026
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Documented ServiceFindings supported by service notes
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Reported by the Homeowner
System running but not cooling.
Glendale homeowner · June 10, 2026
Findings & Work Performed
What our technician documented during the visit
Control board unresponsive and erratic: rapid clicking, status light failed, 120V in/out and 24V to thermostat present but no 24V to fan; jumping R to Y/G/W1 produced no action; test mode briefly started inducer with no blower response.
Replaced control board; system was running and cooling properly.
The Verification
Verification performed
Operation verified after replacement: system running and cooling properly.
— 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 Glendale, AZ. You can browse every case study we have published for this type of work in the Control Board 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
Invoiced parts and work
Invoice descriptions identify billed scope. The service notes above document completed work and any recorded verification.
| Item | Description | Qty | Price |
|---|---|---|---|
| Trip charge to travel to customer home (waived with paid repair during normal business hours). | 1 | $49.98 | |
| Replace OEM control board for heat pump defrost operation. Contact office for price and availability. | 1 | $950.00 | |
| Trip charge waived with performed and paid repair or service (Mon–Fri 7am–5pm). | 1 | $-49.98 |
Total: $950.00
— Photo Documentation
8 photos from this repair
Photos recorded on-site by our technician during this service visit.
— Frequently Asked
Questions about this repair
What was documented about the HVAC system?
Control board unresponsive and erratic: rapid clicking, status light failed, 120V in/out and 24V to thermostat present but no 24V to fan; jumping R to Y/G/W1 produced no action; test mode briefly started inducer with no blower response.
Does AZ Perfect Comfort service Glendale?
Yes. AZ Perfect Comfort services Glendale 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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More real repair case studies from AZ Perfect Comfort
— Same Problem At Your Home?
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AZ Perfect Comfort has served Glendale and greater Phoenix with same-day HVAC diagnostics and repair. Diamond Members get every repair backed by our Lifetime Repair Guarantee.