This part is out of stock right now, so it cannot be added to the cart.
Thermostats monitor temperature conditions and regulate heating or cooling cycles. When the old part fails, the equipment may fail to reach or hold the set temperature.
Specifications
- Part number: 370736
- Brand: Lincoln
- Part type: Thermostat export fusion
- Height: 2.4 in / 6.10 cm
- Length: 2.75 in / 6.99 cm
- Width: 5.85 in / 14.86 cm
- System: gas, electric or heat pump, as listed
- Stages: heat and cool stages your system uses
- C wire: needed by some models, check yours
From the maker's and parts sellers' listings for this number. Compare them with the label on your old part.
What This Thermostat Does
A thermostat works by sensing temperature changes and switching equipment on or off to maintain your desired settings. Most home thermostats, contactor coils, and control boards use a 24 V control signal from a transformer.
Central systems typically rely on low-voltage 24 V controls, whereas baseboard heating uses line voltage. Knowing your equipment type ensures you handle the device safely during service.
Physical Dimensions and Specifications
When comparing your old control to this part number, verify that the physical housing fits into your unit's mounting location. The exact dimensions for this part are listed below.
- Height: 2.4 in / 6.10 cm
- Length: 2.75 in / 6.99 cm
- Width: 5.85 in / 14.86 cm
Confirming the Correct Match
Thermostats are designed around specific equipment setups. To confirm a match, always check your system type, whether it is gas, electric, or a heat pump.
You also need to check the stages of heating and cooling your equipment uses. Some models require a C wire for continuous power, so inspect your current wiring setup to see if a C wire is present.
Signs of Failure and Replacement Steps
A thermostat may be faulty if the system fails to start, will not shut off, or fails to maintain the set temperature. Before you remove the old unit, make sure the power is completely disconnected.
- Turn off power to the heating and cooling unit at the circuit breaker or service switch.
- Remove the faceplate or cover to access the wiring terminals.
- Take a photo of every wire before removing a part to record which wire goes to which terminal letter.
- Disconnect the wires carefully.
- Mount the replacement unit and move wires one at a time to the same spots on the new part.
Read your old part
- Locate the label or stamp on your existing control housing.
- Check that the part number reads 370736.
- Measure the old part to see if it matches the height of 2.4 in / 6.10 cm, length of 2.75 in / 6.99 cm, and width of 5.85 in / 14.86 cm.
- Verify your system type, heating and cooling stages, and C wire requirements before installation.
When to call a pro
Hire a licensed HVAC technician for any step you are not sure you can do safely. If your setup requires opening gas lines, setting gas pressure, or complex electrical troubleshooting, a licensed professional should complete the work.
Questions
What voltage does this type of thermostat use?
Most central systems use a 24 V control signal from a transformer. Baseboard heaters use line voltage. They are not the same, so check your system before changing parts.
Why is taking a photo of the wiring important?
Taking a photo before removing the old part preserves a clear record of which colored wire connects to which letter terminal. Moving wires one at a time to the same spots prevents wiring errors.
What are the exact dimensions of part 370736?
This part measures 2.4 in / 6.10 cm in height, 2.75 in / 6.99 cm in length, and 5.85 in / 14.86 cm in width.
Does my system need a C wire?
A C wire is needed by some models. You should check your current thermostat wiring and equipment manual to see if your system requires one.
Related part numbers
- 369801Thermostat, LincolnSame brand and type
- 46910700Thermostat Specs and Replacement Guide, APWSame part type
- 369131-CLEThermocouple Probe Assembly, LincolnSame brand
- C7189U1005Thermostat Part, HoneywellSame part type
- 300701Hi-Limit Thermostat, ClevelandSame part type
- 369178Contactor Reference, LincolnSame brand
- CT31AThermostat Wiring and Match Guide, HoneywellSame part type
- 18782Thermostat, GaylordSame part type
Browse: Thermostats by part number
All part numbers · Part number replacements · Shop thermostats · Repair guides
Brand names and part numbers identify the part and show fit. HVAC Fitter is not affiliated with, authorized by, or endorsed by any equipment maker. If you are not sure a repair is safe for you, call a licensed HVAC technician.