Camco 09221 — Heat and cool
Single-stage heat and cooling control. White analog mechanical control, non-programmable. Review the exact product listing and photographs before buying.
View Camco 09221 listingCamco RV Wall Thermostats: 09221 Heat/Cool vs 09231 Heat Only
Replacing an RV wall thermostat starts with a simple question: does the thermostat operate only the furnace, or does it also control air conditioning? Camco offers two mechanical wall controls for these different setups. This guide compares part numbers 09221 and 09231 and helps you check your existing system before ordering.
Choose by the controls your RV actually needs
09231 — heating only
A mechanical thermostat intended to call for heat from a single-stage heating system. It does not add air-conditioning control.
09221 — heating and cooling
A mechanical thermostat intended for compatible single-stage heat/cool systems. It does not provide separate fan-speed or fan-mode selections.
Both are white, hard-wired, manually adjusted thermostats. Neither is a programmable smart control. A similar-looking wall plate does not confirm that the wiring or HVAC functions match.
Camco 09221 vs 09231 specifications
| Feature | 09221 | 09231 |
|---|---|---|
| Control function | Heating and cooling | Heating only |
| Stages | Single stage | Single stage |
| User controls | Manual mechanical setting | Manual mechanical setting |
| Programming | Not programmable | Not programmable |
| Electrical connection | Low-voltage hard-wired; verify required system voltage | 12V low-voltage hard-wired |
| Separate fan-speed selection | No | No |
| Cabinet colour | White | White |
Voltage check: Parts listings describe 09221 as a low-voltage mechanical control; published descriptions differ between “12V” and “12/24V.” Verify your original thermostat and the exact appliance control circuit rather than assuming it can replace any 24V or line-voltage thermostat. Never apply 120V household power to a low-voltage RV thermostat.
Shop the correct replacement control
These are the corresponding Camco part-number listings in our catalog. Check the individual item for current availability, condition and included parts.
Camco 09231 — Heat only
Single-stage heating control only. White analog mechanical control, non-programmable. Review the exact product listing and photographs before buying.
View Camco 09231 listingIdentify your existing wiring and furnace or A/C controls
- Photograph the old thermostat first. Record its make, model and terminal labels with the wires still connected.
- Confirm which appliances it operates. A heat-only wall control does not replace a combined heat/cool controller if you still need cooling functions.
- Check the control stages. These Camco models are single-stage, not replacements for multi-stage or zoned HVAC controls.
- Identify fan switches. If your existing thermostat chooses low/high fan speed or auto/on fan mode, these Camco controls do not provide those selections.
- Follow the actual wiring diagram. Wire colours can vary between RVs; match terminals and manufacturer instructions, not insulation colours alone.
Can the 09231 heat-only thermostat run an RV air conditioner?
No. The 09231 is a heating-only control. Select a correctly rated combined heat/cool control only if your system is designed for it.
Can the 09221 replace a thermostat with separate high/low fan settings?
Not on that basis alone. Camco 09221 does not provide separate fan-speed or fan-mode controls. Confirm all required control functions before replacing a multi-function thermostat.
Is the terminal wiring the same on both models?
Do not assume that. Follow the terminal identification and wiring instructions for the exact thermostat and the RV HVAC equipment. Shut off electrical power before working on the control circuit.
Browse additional appliance references through our RV appliance service resources if available, or compare the model-specific furnace parts pages linked throughout our site. For items eligible for local pickup, viewing and pickup are by appointment in Kelowna; availability is shown on each product page.
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