Repair · Phoenix

Condensate Drain Line Clearing and Clean-Out Installation in Phoenix — August 2025

CompletedAugust 20, 2025

TechnicianMike

Service AreaPhoenix

Visit Invoice Total$306.00

Call (602) 613-3489

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Documented ServiceFindings supported by service notes

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Reported by the Homeowner

System stopped working. Nest thermostat shows an error: no power to the RH wire detected.

Phoenix homeowner · August 20, 2025

The Report

What the homeowner told us

System stopped working. Nest thermostat shows an error: no power to the RH wire detected.

Findings & Work Performed

What Mike documented during the visit

Condensate drain line backed up, tripping the condensate safety switch and removing 24V power to the thermostat.

Cut open and cleared the primary drain line with nitrogen; added a T clean-out before the P-trap; glued and reattached loose drain fittings.

The Verification

Verification performed

Poured multiple liters of water down the primary line and observed it draining outside; system was running and cooling upon departure.

— 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 Condensate Drain Line Clearing and Clean-Out Installation 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

Description	Qty	Price
Trip charge for travel to customer home (waived with paid repair during normal business hours).	1	$49.98
Clear the condensate drain line; clean and flush piping to ensure proper draining.	1	$306.00
Trip charge waived with performed and paid service (Mon–Fri 7am–5pm).	1	$-49.98

Total: $306.00

— Photo Documentation

16 photos from this repair

Every step of this repair was documented on-site by Mike.

Condensate drain safety switch with two wires installed on the PVC tee near the air handler.

PVC condensate drain piping and a clear flexible hose run through a wood framing opening, showing elbows, glue joints, and discoloration.

Hand holds plastic bottle over condensate drain vent at air handler; PVC drain and insulated copper line are visible.

Two PVC drain outlets on an exterior stucco wall, with water wetting the ground below.

PVC condensate drain cleanout with standing water visible inside the access opening.

Wall-mounted digital thermostat with circular display shows 75 on a blue screen.

Metal drain pan and PVC condensate piping inside air handler area, showing rust-colored staining along pan surface.

PVC condensate drain with elbow runs along metal pan beneath insulated copper refrigerant lines; visible rust staining at pan.

Wall-mounted smart thermostat with circular blue display reading 75, installed on a white trim plate against a textured wall.

PVC drain line with elbow at the air handler base, next to insulated copper line and mounting screw.

HVAC diagnostic instrument photographed during the service visit.

Air handler base showing insulated suction line, copper refrigerant line, and PVC condensate drain with wired float switch.

Hand holds a clear bottle at the condensate drain connection on an air handler.

PVC condensate drain piping entering a metal tray near a wall, with visible rust staining.

Liquid is poured into a PVC drain cleanout beside an insulated copper refrigerant line.

Wall-mounted smart thermostat displays E74 wiring report message, indicating no power detected on the Rh wire.

— Frequently Asked

Questions about this repair

What was documented about the HVAC system?

Condensate drain line backed up, tripping the condensate safety switch and removing 24V power to the thermostat.

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.

— Same Problem At Your Home?

Let's get your home feeling "just right" again.

AZ Perfect Comfort has served Phoenix and greater Phoenix with same-day HVAC diagnostics and repair. Diamond Members get every repair backed by our Lifetime Repair Guarantee.