✓ Licensed & Insured
24/7 Emergency: 778-909-5731
COMBIBOILER.caEST1999HEATING EXPERTS
BoilerTroubleshooting2026-03-08

Common Rheem Combi Boiler Problems & Fixes

The most common Rheem combi boiler faults — no heat, no hot water, leaks and error codes — and how we fix them.

Like any combi boiler, Rheem units can develop faults over the years. Here are the most common Rheem issues and how our licensed technicians resolve them across Greater Vancouver.

Common Rheem faults

Typical issues on combi boilers including Rheem are no heat or hot water, low or dropping pressure, leaks from the relief valve or pump, ignition lockouts, and error-code faults — most of which are repairable.

Getting your Rheem fixed

Our technicians diagnose the exact Rheem fault — often using its error code — and repair it with genuine parts. Where a major part fails on an older unit, we give honest repair-vs-replace advice.

Key takeaways

  • No heat or hot water: check pressure and thermostat first
  • Note the exact error code
  • Don't repeatedly reset after lockouts
  • We repair all Rheem models

Need help with your boiler?

Licensed, gas-certified technicians serving Greater Vancouver since 1999. CombiBoiler.ca — A division of ROMA Heating Ltd..

Frequently asked questions

Call Now - 778-909-5731