Loyalty Program
Transformers in commercial air conditioners and furnaces convert high voltage into safe low-voltage power. They support thermostats, ignition modules, and control circuits. By ensuring stable operation, they enhance system efficiency and minimize failures.
-13%Siemens Industrial Controls MT0150B Transformer 240/480V-24V 150VASpecial Price $132.27 Regular Price $152.11Out of stock
-13%Siemens Industrial Controls MT0050A Transformer 50VA 240/480V-120VSpecial Price $81.28 Regular Price $93.47
-10%Siemens Industrial Controls MT0250B Transformer 240-480V Pri 24V Sec 250VASpecial Price $205.12 Regular Price $227.68
-13%International Comfort Products 1170003 Transformer 120V PRI/24V SEC 40VASpecial Price $82.81 Regular Price $95.23
-13%Lennox 38631 Transformer 120V-PRI 24V-SEC 30VASpecial Price $58.90 Regular Price $67.73Out of stock- -13%
- -13%Honeywell 50017460-003 Internal Mount Transformer 50-60Hz 120V-24VSpecial Price $121.36 Regular Price $139.57
- -10%Siemens Industrial Controls KT8050P Control Transformer 230/460V PRI 115V SEC 50VASpecial Price $258.94 Regular Price $287.42
- -13%
- -10%York S1-026-38070-006 Transformer 24V/100VA 480VSpecial Price $404.18 Regular Price $448.63Out of stock
- -13%Daikin-McQuay 667715901 Transformer 75VA 277/460V-24VSpecial Price $61.19 Regular Price $70.37Out of stock
Replacement Transformers for Air Conditioners & Furnaces
Transformers in commercial air conditioners and furnaces convert high voltage into safe low-voltage power. They deliver a stable supply to thermostats, relays, circuit boards, and ignition modules, ensuring consistent operation. They also isolate control circuits from high-voltage lines, enhancing system safety and preventing electrical malfunctions.
Failing transformers in HVAC systems often show overheating, unusual humming, or burn marks. Inconsistent voltage can cause thermostats, relays, or compressors to malfunction. Frequent system shutdowns or control tripping also indicate transformer failure. Electrical testing can confirm voltage irregularities and pinpoint the issue.
PartsHnC offers a wide selection of genuine transformers for commercial HVAC systems, ensuring quality and durability. Trusted brands like Carrier, Trane, Lennox, and York are available to match diverse system requirements. We sell trusted and genuine parts, including transformers like motor 120V, ignition 110V, primary 120V-secondary 24V 30VA, internal mount, power choke, control power 150 VA, circuit boards, and relays.
FAQs
Why does my HVAC transformer overheat frequently?
Overheating may indicate voltage overload, loose connections, or internal winding damage requiring immediate inspection or replacement.
What causes a transformer to fail prematurely?
Common causes include voltage spikes, overheating, loose connections, manufacturing defects, or prolonged electrical overload.
Why is my air conditioner transformer tripping breakers repeatedly?
Overload, short circuits, or internal faults can cause the air conditioner transformer to trip breakers.
Why is my thermostat not controlling the AC correctly?
The transformer might be providing insufficient voltage, disrupting thermostat signals and relay activation within the HVAC system.
Where do I find the transformer in my commercial air conditioner?
It’s typically mounted inside the control panel or near the air handler, connected to low-voltage control circuits.
What causes a furnace transformer to underpower the thermostat?
Voltage output may be weak or inconsistent, causing thermostats, relays, and ignition systems to malfunction.