Rheem manufactures residential and commercial water heaters, including gas tank water heaters, electric tank water heaters, tankless water heaters, hybrid heat pump water heaters, point-of-use water heaters, boilers, accessories, and replacement parts. Customers may contact Rheem for technical support, warranty questions, parts help, product registration, serial-number lookup, installation questions, troubleshooting, EcoNet app support, and unresolved complaints.
How to Contact Rheem Water Heater Customer Service
- Rheem Water Heater Technical Support: 1-800-432-8373
- Rheem Water Heater Warranty and Parts Support: 1-800-621-5622
- Rheem EcoNet Support: 1-800-255-2388
- Website: www.rheem.com
- Rheem Help and Support: Rheem Help and Support
- Warranty Registration and Lookup: Rheem Warranty and Registration
- Parts: Rheem Replacement Parts
- Find a Rheem Pro: Find a Rheem Pro
- Corporate Office Address: Rheem Manufacturing Company, 1100 Abernathy Rd. NE, Suite 1700, Atlanta, GA 30328
Rheem Customer Service Hours
Rheem Water Heating Support is generally available Monday through Friday from 7 a.m. to 7 p.m. Central Time. Rheem states that water-heating support emails are monitored Monday through Friday from 8 a.m. to 5 p.m. Central Time, and responses may take longer after hours, on weekends, or following holidays.
Best Ways to Get Help from Rheem
The best way to contact Rheem depends on the problem. For a water heater that is not working, call Rheem technical support at 1-800-432-8373. For warranty, parts, or product-registration questions, call 1-800-621-5622. For EcoNet app or Wi-Fi issues, call 1-800-255-2388.
For Technical Support
Call 1-800-432-8373 if your Rheem water heater is not heating, leaking, showing an error code, making unusual noise, shutting off, displaying a fault code, or having trouble with ignition, elements, thermostats, control boards, sensors, or operation.
For Warranty or Parts Questions
Call 1-800-621-5622 for questions about warranty coverage, parts orders, warranty verification, replacement parts, product registration, or warranty documentation. Have your model number, serial number, installation date, proof of purchase, and installer information ready before calling.
For EcoNet App or Wi-Fi Support
If your Rheem water heater uses EcoNet, call 1-800-255-2388 for help with app setup, Wi-Fi connection, account login, leak alerts, diagnostic alerts, remote temperature control, and smart-home connection issues.
For Retailer-Purchased Rheem Water Heaters
If you bought your Rheem water heater from a retailer such as Home Depot or another authorized seller, the retailer may be involved in returns, exchanges, delivery issues, replacement logistics, or proof-of-purchase questions. Rheem may still need to diagnose the issue and confirm warranty eligibility before a replacement or parts claim is approved.
What to Have Ready Before Contacting Rheem
- Your Rheem water heater model number
- Your serial number from the rating plate
- Proof of purchase or receipt
- Installation date
- Name and contact information for the installer, if available
- Photos of the rating plate, leak, error code, piping, venting, drain pan, or installation area
- Error codes, flashing-light patterns, or app alerts
- Repair invoices, diagnostic notes, or plumber recommendations
- A short explanation of the problem and what resolution you are requesting
Rheem Water Heaters Customer Service Reviews and Complaints
CustomerServiceNumbers.com currently shows 0 published Rheem Water Heaters reviews and 0 out of 5 stars. There is not enough live CSN review data to summarize customer sentiment for this company yet. If you have contacted Rheem customer service, you can help other customers by leaving a review below about technical support, warranty claims, replacement parts, retailer warranty exchanges, tankless support, hybrid water heater issues, EcoNet support, or complaint resolution.
Common Rheem Water Heater Customer Complaints
Customers searching for Rheem Water Heaters customer service often need help with:
- No hot water or not enough hot water
- Water heater leaking from the tank, fittings, valve, or drain area
- Gas water heater ignition or pilot problems
- Electric water heater element, thermostat, or reset issues
- Tankless water heater error codes or flow problems
- Hybrid heat pump water heater noise, alarms, or performance concerns
- EcoNet app, Wi-Fi, or smart-control issues
- Warranty claims, replacement parts, or warranty coverage disputes
- Retailer warranty exchanges and proof-of-purchase problems
- Difficulty reaching the correct technical-support or warranty department
Rheem Warranty and Registration Help
Rheem offers online tools to register products, verify warranty coverage, and review warranty information. Warranty coverage may depend on the product type, model, serial number, installation date, installation conditions, maintenance, and whether the water heater was installed according to code and manufacturer instructions.
Before filing a warranty claim, locate the rating plate on the water heater and take a clear photo of the model and serial number. Rheem or the retailer may also ask for photos of the full installation, venting, water connections, electrical or gas connections, drain pan, expansion tank, and any visible problem.
Rheem Technical Support Tips
If your Rheem water heater is not working, do not remove safety devices, bypass controls, block the temperature and pressure relief valve, alter venting, or attempt gas or electrical repairs unless you are qualified to do so. Water heaters involve electricity, gas, combustion, pressure, hot water, carbon monoxide risk, and scalding hazards.
For basic troubleshooting, write down any error code, flashing-light pattern, or EcoNet alert before resetting power or turning the unit off. This information can help Rheem technical support or a licensed contractor diagnose the issue faster.
Rheem Tankless Water Heater Help
For tankless water heater issues, collect the model number, serial number, gas type, error code, venting details, water-flow symptoms, and maintenance history. Tankless problems may involve gas supply, venting, water pressure, scale buildup, flow sensors, condensate drains, recirculation settings, or installation conditions.
Rheem Hybrid and Heat Pump Water Heater Help
For hybrid heat pump water heaters, gather the model number, serial number, operating mode, error code, air-filter status, room temperature, condensate information, and EcoNet app details. Hybrid water heaters may operate differently than standard electric tanks, especially in small rooms, garages, utility closets, or spaces with limited airflow.
Rheem Parts and Replacement Help
Rheem replacement parts may be available through Rheem Parts, authorized distributors, retailers, or licensed contractors. Before ordering parts, confirm the exact model and serial number, because gas valves, control boards, elements, sensors, burners, igniters, and other components can vary by model and production date.
Rheem Safety and Scam Warning
Be careful with third-party websites, ads, or callers claiming to be official Rheem support. Do not provide passwords, banking information, remote device access, or unusual payment methods to unknown callers. If you need help with a Rheem product, use the official Rheem website or the phone numbers listed above.
If your water heater is leaking, producing a gas smell, creating a carbon monoxide concern, showing signs of electrical damage, or causing property damage, contact a qualified professional or emergency services as appropriate. Do not continue operating a water heater that appears unsafe.
How to Escalate a Rheem Water Heater Problem
If your Rheem issue is not resolved after the first contact, take these steps:
- Save your model number, serial number, receipt, warranty information, and support case details.
- Write down the date, time, phone number, and department used for each contact.
- Ask whether your issue is being handled by Rheem technical support, warranty support, parts support, the retailer, or an installer.
- Request written confirmation of any warranty decision, diagnostic recommendation, replacement approval, parts order, or denial.
- If a contractor diagnosed the problem, keep the invoice or written diagnostic notes.
- If the issue involves a retailer warranty exchange, confirm what documentation the retailer and Rheem each require.
- If the issue involves property damage or a safety concern, take photos and keep repair estimates, plumber notes, and insurance documentation.
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Other Helpful Consumer Resources
- CorporateOfficeHeadquarters.com – Find company headquarters and corporate contact information.
- ChargeOnMyCard.com – Look up confusing or unknown credit card charges.
- ThinkItsAScam.com – Research suspicious repair offers, fake warranty calls, and online scams.
- ZeroStars.org – Read and share customer complaints and reviews.
- CSNDB.com – Find additional customer service contact and support resources.
Why Trust CustomerServiceNumbers.com?
CustomerServiceNumbers.com has helped consumers find customer service information since 2004. Our pages are designed to help customers locate support options, understand common complaints, and share real customer service experiences. We are not affiliated with Rheem Manufacturing Company, Ruud, Richmond, EcoNet, Home Depot, or any installer, and the information on this page is provided for consumer reference only.
Share Your Rheem Water Heater Customer Service Experience
Have you contacted Rheem water heater customer service? Share your experience below. Your review can help other customers understand how Rheem handles technical support, warranty claims, parts orders, product registration, EcoNet support, retailer warranty exchanges, tankless problems, hybrid water heater issues, and complaint resolution.
Disclaimer: CustomerServiceNumbers.com is not affiliated with Rheem Manufacturing Company, Ruud, Richmond, EcoNet, Home Depot, or any installer. Contact information may change, and customers should confirm details directly with Rheem when possible. Water heaters can involve electricity, gas, combustion, pressure, hot water, and carbon monoxide risk. For safety concerns, contact a qualified professional or emergency services as appropriate.

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