Richmond Water Heater Troubleshooting

The Short Answer: Richmond is Rheem hardware in a Lowe’s jacket. A cold, flashing, or wet Richmond is an element, ECO, gas lockout, or a leak — not a mystery brand. Read the rating plate, count the LED on that machine, paper-towel the puddle. Gas-valve specifics: Richmond gas valve. A wet jacket is a replacement. Hire a licensed plumber.

Search Intent & The Real Problem

Showers died. The badge says Richmond. The serial and the parts are Rheem. Same 4500 W elements, same Honeywell / Resideo FVIR gas controls, same Paloma-based tankless boards, same plastic drain that weeps. Sister no-heat map: Rheem not heating, Ruud troubleshooting. Do not paste a Bradford White ICON chart onto this LED. Tankless two-digit codes are not a tank status light — Rheem code 11.

What other guides get wrong

They open with a brand history. That does not heat a shower. They mix the electric access-door LED with the gas-valve LED. They treat every bottom drip as a cracked tank and skip the plastic drain. They tell you to crank the setpoint to 140°F as a diagnosis. And they reset a dry-fire code without filling the tank.

Step-by-Step Troubleshooting

Step 1: Name fuel, platform, and the actual complaint

• What to look for: Rating plate (often 6E / 9E electric, 6G / 9G gas, or a Rheem-family model). Photo of the LED sticker inside the door or on the valve. That sticker wins.
• Required tools: Flashlight, phone camera.

A green heartbeat with hot water is often normal — flashing green. No LED at all on a gas Richmond: Rheem no status light.

Step 2: Electric Richmond — breaker, fill, then the light

Common Rheem-family electric sticker (verify your door): 1 flash = normal, 2 = dry-fire, 3 = ECO / high-limit, 4 = lower element, 5 = upper element, 6–7 = thermostats. Count two full cycles. Three flashes: 3-flash decoder. Five: 5 flashes. Six: 6 flashes.

• What to look for: Both halves of the double-pole on. A breaker that will not reset is a short, not a setting. Tank full — open a hot faucet until it runs solid. A 2-flash after a drain is dry-fire. Wires lifted, power verified dead: a healthy 4500 W / 240 V element is ~18.8 A and reads ~12–13 Ω across the screws. Infinite = open. Any screw-to-tank continuity = grounded.
• Required tools: Breaker lock, non-contact tester, multimeter. No meter = hire it.

Red ECO on the upper thermostat: reset once after you know why it tripped. Daily clicks are keep resetting. Brown plastic is how thermostats burn up.

Step 3: Gas Richmond — LED, igniter, FVIR — not a bigger tank

• What to look for: Appliance cock parallel to the pipe. Control not left on OFF or Vacation. Standing-pilot that will not hold: Rheem pilot / will not stay lit. Electronic: one trial through the port — spark or glow, then flame. No spark is lockout, no 120 V, or a dead electrode — Honeywell igniter, not a match. Two-flash thermopile low: thermopile voltage low. Seven blue flashes is FVIR or a valve fault on many of these controls — Rheem 7-flash. Nine is a different count — Rheem 9-flash. Chamber / vapor language: chamber sensor.
• Required tools: Jacket lighting sticker. Eyes. No union wrenches. Do not purge fittings.

Thermocouple standing pilots: ~20–30 mV. Thermopile electronics: hundreds of millivolts. A $12 thermocouple on a millivolt Honeywell that wanted a pile is the classic wrong part. Manifold pressure is licensed: NG about 3.5–7 in. w.c. / LP about 10–11 in. w.c. — confirm the plate. Water in the burner tray: shut gas. That tank is scrap and a CO problem if you keep firing it.

Step 4: Tankless Richmond / Rheem twins — different boards, same last name

• What to look for: Paloma-based Richmond / Rheem tankless throwing 11 is failed ignition, 12 is flame loss. Photograph the code. Reset once. Do not keep cycling a flooded burner. Lukewarm with a hot tank outlet is a mixing valve or dip tube, not a bigger Richmond. Do not raise setpoint to 140°F to “test.” That scalds and hides the mixing valve.
• Required tools: Phone photo of the display. Thermometer at the tank outlet vs the fixture.

Odor at a Rheem-family tank: Rheem smells like gas — leave.

Step 5: Leak — paper-towel the source before you buy a heater

• What to look for: Dry it. Wait two minutes. Wipe again. Static pressure over ~80 psi at a hose bib plus a waterlogged expansion tank will dump the T&P on a sound Richmond. A 12-year tank with rusty water and a wet jacket is not an element.
• Required tools: Paper towel, flashlight, hose-bib gauge if the T&P is the wet pipe.

Do not epoxy the shell. Do not energize an electric Richmond that leaked down onto an element. Need it off? Shutoff.

When DIY Ends: Calling a Licensed Pro

You may read the sticker, follow one lighting cycle, look for lint at the arrestor, fill the tank, and ohm elements with power verified dead. You may not loosen the flex, bypass the flammable-vapor sensor, jumper an ECO, or replace the control. A licensed plumber measures millivolts and manifold pressure, services FVIR or the power-vent prove circuit, and swaps the Richmond / Rheem valve only after those pass — then leak-tests every joint. Same-day licensed diagnosis beats a weekend of mixing ICON charts onto a Lowe’s tank.

Frequently Asked Questions

Q: Why is my Richmond water heater not working? A: Element, ECO, dry-fire, gas lockout, weak thermopile, FVIR lint, or a leak. Richmond is Rheem hardware. Count the LED against the sticker on that unit.

Q: Is Richmond the same as Rheem? A: Same parent, same parts family as Ruud. Use Rheem part numbers for elements, thermostats, and FVIR gas controls. Tankless boards follow the Paloma-based Rheem codes.

Q: Can I put a universal gas valve on a Richmond tank? A: Only if it matches millivolt vs electronic, NG vs LP, and the FVIR plug. A blister-pack “universal Honeywell” that does not match is a callback and a leak risk. Hire a licensed plumber.