Ideal Logic fault FA
Flow/return reversed
Gas boilerWhat it means
Flow and return pipes are connected in reverse order
Likely causes
- Pump connected backwards
- System pipework connected incorrectly
- Condensate pipe frozen at most exposed point external to building
- Obstruction to flow at pipe bend or elbow
- Dip in pipe where condensate collects
Where to start
- Check pump connection direction
- Verify system pipework routing
- Check system pressure on the pressure gauge
The full answer, free
- 3 more checks in order
- The readings and component tests from the manual
- How to put it right, step by step
- The manual page for this fault (page 51), right under the answer
Safety: Isolate gas and power before you open the case. If you have been into the gas side, do a tightness test, and a combustion and flue check before you hand back. Gas Safe (UK) or RGI (Ireland) work only.
From the Ideal manual for the Logic. Check the model on the data plate before you order parts.