Description
Product Summary
The White-Rodgers 90-T40M1 is a transformer from White-Rodgers, described by the manufacturer as: 40VA 60 hz 120V primary 24V secondary multi mount transformer. It is rated for 120V. It replaces 90-4011M.
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 90-T40M1 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 White-Rodgers part: Manufacturer part number 90-T40M1, factory new.
- Voltage: 120V.
- Cross-reference: Replaces 90-4011M.
- Part type: Transformer.
Frequently Asked Questions
Is this a genuine White-Rodgers part?
Yes. This is the White-Rodgers 90-T40M1, a factory-new transformer from White-Rodgers.
How do I make sure it fits my equipment?
Compare 90-T40M1 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 part numbers does the 90-T40M1 replace?
The White-Rodgers 90-T40M1 replaces 90-4011M.
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.
