My old dryer cycling thermostat had 5 wires and the new one only has 4. What do I do?
Identifying Wires by Color
Dryer cycling thermostats typically have four or five wires with different colors:
- Black: Line from power source
- White: Neutral from power source
- Red: Line to compressor (only in 5-wire thermostats)
- Blue or Green: Compressor common
- Yellow or Orange: Line to heating element
Connecting a 4-Wire Thermostat
In most cases, you can connect a 4-wire thermostat to a 5-wire system by omitting the red wire. The red wire is responsible for connecting to the compressor, which is not present in some dryer models.
Step-by-Step Instructions:
- Disconnect power to the dryer at the circuit breaker or fuse box.
- Remove the old thermostat from the housing.
- Identify the wires using the color code above.
- Connect the black wire to the black terminal on the new thermostat.
- Connect the white wire to the white terminal.
- Connect the blue or green wire to the common terminal (usually marked "C").
- Connect the yellow or orange wire to the heating element terminal (usually marked "L" or "T").
- Reinstall the thermostat in the housing.
- Restore power to the dryer.
Additional Tips:
- If the wires on your old and new thermostats have different colors, consult the manufacturer's documentation for proper mapping.
- Make sure all wire connections are secure before turning on the dryer.
- If you are unsure about any part of the process, it is recommended to seek professional assistance.
Related Questions and Answers:
- Can I use a 4-wire thermostat in a 5-wire system? Yes, in most cases.
- What color wire is the compressor common? Blue or green.
- Where should I connect the yellow or orange wire? Heating element terminal.
- Should I turn off the power to the dryer before replacing the thermostat? Yes, for safety.
- What is the difference between a 4-wire and a 5-wire thermostat? A 5-wire thermostat has an additional red wire for connecting to the compressor.
Related Hot Selling Products:
- Whirlpool 4-Wire Electric Dryer Thermostat
- Frigidaire 4-Wire Dryer Thermostat
- GE 4-Wire Gas Dryer Thermostat
- Kenmore 4-Wire Electric Dryer Thermostat
- Samsung 4-Wire Gas Dryer Thermostat
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