MRCOOL FS2 Float Switch – FS2
$19.93
-
Product Details
- Model Number
- FS2
- Brand
- MRCOOL
- Condition
- New
Description
The MRCOOL FS2 Float Switch is an HVAC control from MRCOOL stocked by Buy Comfort Direct — full listing: MRCOOL FS2 Float Switch – FS2. This page covers what it is, where it fits in a system, what to check before you order, and how it ships.
About the MRCOOL FS2 Float Switch
MRCOOL FS2 Float Switch – FS2
The evaporator coil in your air handler will always create condensation during normal operation, so having a safety precaution that monitors the water level is crucial for safe, sustained performance. The CoolGuard FS2 Float Switch monitors moisture levels to watch for clogs. If the condensate drain in your HVAC system becomes clogged, the CoolGuard Float Switch is the piece responsible for shutting the system down before the moisture can back up and damage the delicate internal hardware. With a construction designed to be installed horizontally where the primary drain pan meets the auxiliary drain outlet, the CoolGuard FS2 Switch comes with the necessary adapter, bushing, and cap to streamline setup. Supporting 24VAC of voltage and 1.25 amps of current, the CoolGuard Switch is approved for use in class 2 thermostat circuits. The easy-to-remove cap guarantees a quick and easy process to inspect the status and levels in the float switch. What more could you be looking for out of a float switch? Opt for the CoolGuard FS2 Float Switch today.
Technical Specifications
| Specification | Value |
|---|---|
| Manufacturer | MRCOOL |
| Model Number | FS2 |
| Series | CoolGuard |
| Voltage | 24 V |
| Color | White |
| Unit Dimensions | 8″H x 1.5″W x 5.75″D |
| Shipping Weight | 5 lb |
Professional Installation Required
Certified HVAC technician installation ensures optimal performance, safety compliance, and full warranty protection.
Important: Check state and local codes and ordinances before purchasing. Product availability and compliance requirements may vary by region.


Where the MRCOOL FS2 Float Switch fits
Controls decide how the equipment behaves: thermostats and zoning panels call for heating and cooling, and safety devices such as float switches and condensate pumps stop water damage before it starts. The MRCOOL FS2 Float Switch has to match the equipment it is wired to — stages, heat-pump reversing valve, common wire and voltage all matter.
Modern controls do more than switch a relay: staging, dehumidification calls, fan profiles, dual-fuel changeover and remote access all live in the thermostat or panel. Matching the control to the equipment’s capabilities unlocks features that are otherwise wasted.
Background reading: the U.S. Department of Energy maintenance guide.
What to check before you order
- Compatibility: single or multi-stage, heat pump (O/B), dual-fuel, communicating versus conventional.
- Wiring: 24 V common wire availability, or line-voltage rating where applicable.
- Placement: float switches in the primary drain pan or secondary line; pumps sized for lift.
Installation and service notes
Kill power at the breaker before wiring low-voltage controls, label every conductor, and confirm the common wire before relying on a powered thermostat. Zoning panels and dual-fuel controls need the equipment’s stage and fan settings configured to match, so keep the equipment manual next to the control manual during setup.
Why buy the MRCOOL FS2 Float Switch from Buy Comfort Direct
We are a stocking HVAC distributor based in Winder, Georgia — not a marketplace reseller. Orders over $99 ship free, and financing is available at checkout through Affirm. If you are not sure this is the right part, call (877) 843-4822 before you order and we will match it to your equipment. Browse the rest of our Accessories, and see what customers say on our reviews page.
Ordering and delivery
In-stock items ship from our Winder, Georgia warehouse. Orders over $99 ship free; large equipment travels by freight carrier and parts by ground, and you will get tracking by email when it leaves. Need it matched to a system, or need a quantity that is not on the shelf? Use the contact page or call (877) 843-4822 and we will confirm availability before you pay.
MRCOOL FS2 Float Switch FAQ
Will this work with my system?
Send us the equipment model numbers and we will confirm before you order.
Does the MRCOOL FS2 Float Switch ship free?
Yes on orders over $99 — most orders that include it qualify. Large equipment ships by freight carrier; parts ship by ground.
How do I know it matches my equipment?
Send us your equipment model number through our contact page or call (877) 843-4822. We check the pairing before it ships.
Additional information
| Weight | 5.00 lbs |
|---|---|
| Dimensions | 0.00 × 0.00 × 0.00 in |
| System Type | Mini Split |
| Brand | MRCOOL |
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