Description
Product Summary
The Allanson 421-BT636 is a transformer from Allanson, described by the manufacturer as: universal 6 way transformer includes mounting plate.
A control transformer steps line voltage down to the low voltage, usually 24 volts, that runs the thermostat, controls and valves. Replace a transformer with no output voltage while it has correct input voltage, or one that is burnt or overheating. Find any short that blew the original first.
Before you order, match 421-BT636 to the part number on the part you are replacing or in your equipment's repair parts list, and confirm the voltage, size and connections match your equipment. If you are not sure which part your equipment needs, call us at 1.888.509.3391 with the model and serial number and we will confirm it for you.
Key Features
- Genuine Allanson part: Manufacturer part number 421-BT636, factory new.
- Includes: Mounting Plate.
- Part type: Transformer.
- Ready to ship: In stock with live quantities shown on this page.
Frequently Asked Questions
Is this a genuine Allanson part?
Yes. This is the Allanson 421-BT636, a factory-new transformer from Allanson.
How do I make sure it fits my equipment?
Compare 421-BT636 with the part number printed on the part you are replacing or listed in your equipment's repair parts list, and confirm the voltage and connections match. If you are not sure, call us at 1.888.509.3391 with your model and serial number and we will confirm it.
What size transformer do I need?
Match the primary and secondary voltages and choose a VA rating equal to or higher than the original.
Should a professional install this part?
Yes. Gas, electrical, hydronic and combustion components should be installed by a qualified technician who can test the system afterward and follow the codes that apply where you live.
