Price Match Guarantee
In-stock parts ship the same day
365-Day Return Policy
Price Match GuaranteeGET PRO PRICING
Manufacturer Part
Transformer 622337
Manufacturer Part
Skill Level
$56.20
Skill Level
Does this part fit my product?
120v to 24v 40va transformer
$56.20
This part 622337 is compatible with:
- Product Type:
- Furnace
- Brands:
- Frigidaire, Maytag, Gibson, Kelvinator, Tappan, White-Westinghouse, Nordyne, Garrison, Intertherm, Mammoth, Medallion, Philco, GrandAire, Miller
Related Articles & Videos
Transformer Customer Reviews
Common Problems Fixed by the Transformer
Based on customer reports and repair data, this part commonly fixes these issues:
Likely
Furnace not turning on
Possible
Air handler not heating
Possible
Air handler not cooling properly
Possible
Furnace wall thermostat not working properly
Possible
Air handler wall thermostat not working properly
Possible
Furnace not heating
About the Transformer
A furnace transformer is the component that decreases or increases the incoming voltage to power the unit. A faulty transformer can prevent the furnace from turning on. If there is no secondary 24 volt power to the thermostat, the furnace trips a circuit breaker when it comes on, or you hear a consistent humming or vibrating noise, it's possible the transformer has failed.
Shop by Brands
Repair Help by Brands and Product Type
Alternative Part Number(s)
Replaces Part Number 621079
Replaces Part Number 620776
Replaces Part Number 621329
Replaces Part Number 621486
Replaces Part Number 621486R
Our Story
Family-owned and operated since 1912, Burke America Parts Group is the longest-running genuine appliance, HVAC, and outdoor power equipment parts solution in North America. At Repair Clinic, we're proud to be an international brand trusted by the pros as well as the DIY community.
About Repair Clinic
© 2026 RepairClinic.com