Coleman | Wall Thermostat | 9420A382 | Digital | Heat and Cool | Black

Control your Coleman Mach RV heating and cooling from a single wall thermostat with the Coleman Mach 9420A382 Digital Wall Thermostat in black. This easy-to-use digital thermostat provides single-stage heat/cool control with high/low fan speeds and a clear digital readout — replacing dial-controlled or older button-based thermostats in compatible Coleman Mach systems.

Digital Precision for RV Climate Control

The 9420A382's digital LCD readout shows your current temperature setpoint at a glance — eliminating the guesswork of old-school analog thermostats with sliding markers. Set your desired temperature, and the thermostat manages the AC and furnace automatically.

Single-Stage Heat & Cool with Fan Control

The thermostat provides comprehensive single-stage HVAC management:

• Heat mode for heat pump or gas furnace operation
• Cool mode for AC operation
• High and low fan speed control
• Single-zone operation (one AC/heat system)

⚠️ Required Control Box — Sold Separately

This thermostat does not work standalone — it requires a compatible Coleman Mach control box to interface between the thermostat and your AC/heating system. The 9420A382 is compatible with the following control boxes:

• Coleman 8330-752 Cool-Only Control Package — for cool-only installations
• Coleman 9330C755 Heat-Ready Control Box — for installations with electric heat strip support
• Coleman 9530A751 Heat Pump Control Box — for heat pump system installations

If you're buying this thermostat to replace an existing one, your control box is already in place. If you're installing this as part of a new wall-thermostat conversion, plan to purchase the appropriate control box at the same time based on whether you need cool-only, heat-strip-capable, or heat-pump operation.

For Coleman Mach Heat Pump Systems

The 9420A382 is specifically designed for heat pump and gas furnace control in Coleman Mach heat pump systems. Compatible with Coleman Mach, Polar Cub, and Roughneck air conditioner systems when paired with the right control box.

Wide Direct Replacement Coverage

The 9420A382 is a direct replacement for a wide range of earlier Coleman Mach wall thermostat part numbers. Cross-reference: if your existing thermostat has any of these part numbers, this is the correct replacement:

• 9430A3371, 9430A3372
• 9430A3381, 9430A3382
• 9430A3421, 9430A3422
• 9630A3351, 9630A3352
• 9630A3361, 9630A3362
• 9420-381, 9420A381

If your existing thermostat shows any of those part numbers, you can install this 9420A382 as a direct OEM replacement.

12V DC Operation

The thermostat runs on 12V DC power from your RV electrical system — no batteries to swap, no external power supply needed.

Key Features

• Coleman Mach 9420A382 digital wall thermostat — black finish
• Single-stage heat and cool control
• High and low fan speed control
• Digital LCD readout for precise temperature display
• Single-zone operation
• 12V DC power
• For heat pump and gas furnace control in Coleman Mach heat pump systems
• Compatible with Coleman Mach, Polar Cub, and Roughneck AC systems (with appropriate control box)
• Wide replacement coverage — replaces 11+ earlier Coleman thermostat part numbers
• Requires a compatible control box (8330-752, 9330C755, or 9530A751 — sold separately)
• Compact dimensions: 5-1/2" L × 3-3/4" W × 1-1/8" H
• Backed by a 1-year manufacturer warranty

Specifications

• Brand: Coleman Mach
• Part Number: 9420A382
• Type: Digital Wall Thermostat (Heat/Cool)
• Color: Black
• Display: Digital LCD readout
• Modes: Heat, Cool
• Fan Speeds: High, Low
• Stages: Single stage
• Zones: Single zone
• Voltage: 12V DC
• Application: Heat pump and gas furnace control in Coleman Mach heat pump systems
• AC Compatibility: Coleman Mach, Polar Cub, Roughneck (with compatible control box)
• Required Control Box (sold separately): 8330-752, 9330C755, or 9530A751
• Dimensions: 5-1/2" L × 3-3/4" W × 1-1/8" H
• Replaces: 9430A3371, 9430A3372, 9430A3381, 9430A3382, 9430A3421, 9430A3422, 9630A3351, 9630A3352, 9630A3361, 9630A3362, 9420-381, 9420A381
• Warranty: 1-year manufacturer warranty