Programmable HVAC Wall Thermostat For: Robertshaw RS9220 ERRS9220

ERP RS9220 Programmable HVAC Wall Thermostat

Bring clearer scheduling and more consistent temperature control to a compatible heating and cooling system with this ERP aftermarket replacement wall thermostat. The RS9220 is identified for the Robertshaw application and is described as a 7-day programmable, multi-stage thermostat supporting up to 2 heat and 2 cool stages. It is not a genuine Robertshaw OEM part.

A programmable thermostat can help organize comfort settings around a weekly routine, but the thermostat must match the HVAC equipment, wiring, voltage, and number of heating and cooling stages. Verify those details against the original thermostat and equipment documentation before ordering.

Product Details

• Product type: Programmable HVAC wall thermostat.
• Compatible brand/application: Robertshaw RS9220.
• Programming: 7-day programmable schedule.
• System capability listed for the RS9220 application: multi-stage, 2 heat / 2 cool.
• ERP aftermarket replacement, not a genuine Robertshaw OEM part.
• SKU / ERP identifier: ERRS9220.
• Primary application / MPN: RS9220.
• Verified UPC: 662013228231.
• Verified GTIN: 00662013228231.

Compatible Part Numbers and Identifiers

• RS9220
• ERRS9220
• UPC 662013228231
• GTIN 00662013228231

What This Thermostat Is Designed To Do

• Provide scheduled temperature-control commands for a compatible HVAC system.
• Support a weekly 7-day programming routine.
• Control compatible multi-stage equipment configured for up to 2 heat and 2 cool stages.
• Replace a matching thermostat that has failed, become unreliable, or no longer controls the system correctly.

Fixes These Symptoms

• Thermostat display is blank or unresponsive after power and wiring are confirmed.
• Heating or cooling does not start when the thermostat calls for operation.
• Temperature control is inaccurate, inconsistent, or does not follow the selected setting.
• Programmable schedules do not run or cannot be maintained.
• One or more supported heating or cooling stages does not respond as expected.
• Thermostat controls are worn, damaged, or no longer operate reliably.

These symptoms can also be caused by HVAC power, wiring, equipment, sensor, fuse, or control-board problems. Test the system and confirm the failed component before replacing the thermostat.

Compatible Brands and Models

Compatible brand: Robertshaw.

Application: RS9220.

Fits various models. Please verify compatibility with us before ordering. Brand or part-number similarity alone does not establish fitment.

Before Ordering

• Compare the original thermostat model and part number with RS9220.
• Confirm the HVAC equipment uses the same number of heating and cooling stages, up to 2 heat and 2 cool as listed for this application.
• Confirm system voltage, terminal designations, wiring configuration, and required power arrangement.
• Check the mounting footprint and available wall space.
• Do not assume wire colors, terminal letters, or a similar-looking thermostat are interchangeable.

Installation and Safety

1. Turn off HVAC power at the service disconnect or breaker before opening the thermostat or disconnecting wires.
2. Verify power is off with an appropriate meter and follow the equipment and thermostat service instructions.
3. Photograph the original wiring and label each wire by terminal position. Do not infer connections from wire color.
4. Have a qualified HVAC technician confirm system voltage, stages, wiring, equipment compatibility, and the required power arrangement.
5. Mount the replacement securely and connect each wire to the correct terminal. Never bypass an interlock, fuse, or thermal safety control.
6. Restore power and run a supervised heating and cooling test, checking each supported stage and the programmed schedule.
7. If the system behaves unexpectedly, turn power back off and have the wiring and equipment diagnosed by a qualified technician.

ERP aftermarket replacement part. Verify the complete HVAC system, original thermostat, voltage, stages, wiring, mounting configuration, and model-specific requirements before ordering.

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