Richmond electric tanks have two thermostats. Upper integrates ECO red reset button.
Symptoms
- No hot water (upper stuck open / ECO tripped)
- Boiling water (stuck closed)
- Lukewarm only (lower stuck open)
Replacement
- Off breaker
- Remove access panel
- Note wire positions
- Slide thermostat out
- Insert new; connect wires; set 120°F
Both same temperature
Upper and lower must match.
Cost
- Upper with ECO: $30-50
- Lower: $25-40
Bottom line
Test before replacing.