Remeha fault code b 30
Fault code b 30 on a Remeha boiler (including Gas and Quinta) means: Maximum permissible difference between flow and return temperature exceeded. Reset the appliance once. If the code comes back, a part is usually faulty. You can check the water pressure and settings yourself; leave work on gas-carrying parts to a certified gas engineer.
After a safety alert (gas, flue gas, combustion), reset no more than once and call in a certified gas engineer. If you smell gas, call your national gas emergency number or 112 immediately.
Cause
Fault code b 30 on a Remeha boiler indicates: Maximum permissible difference between flow and return temperature exceeded.
Applies to
Remeha Gas, Quinta, 115, 85, Gas 210 115 ECO 4 sections, Gas 210 80 ECO 3 sections.
Fault code b 30 on other Remeha series
The same code does not mean the same thing on every series. Check the rating plate to see which series you have:
- b30 on Quinta, 25c, 25s, 28c, 30c, 30s: Normal operating modes and therefore does not indicate a fault.
Matching parts
Remeha parts are available from Instalpunt; shipping to EU countries from €12.95 (€16.95 for more distant countries), usually 3–5 working days.
Parts per Remeha-series: Tzerra Ace · Tzerra · Avanta Ace · Avanta · Calenta Ace · Calenta · Quinta Ace · Quinta.
This message does not point directly to one faulty part. These are the parts that most often fit this appliance:
- Remeha venturi gasket 5 pcs for Quinta and Quinta Ace € 21.57
- Remeha grommet for flue pipe € 11.76
- Remeha gasket tape front plate 6mm for Quinta and Quinta Ace € 24.18
Fix it yourself or call an engineer?
Always consult the manual for your appliance and work safely. If in doubt or if the fault comes back, call in a qualified professional. A question about a part? Write to us at info@instalpunt.nl.
Frequently asked questions
What does Remeha boiler fault code b 30 mean?
Maximum permissible difference between flow and return temperature exceeded.
How do I fix fault code b 30 on a Remeha boiler?
First check the cause described above. Then restart the appliance using the reset button. If the message comes back, a part usually needs replacing or the fault needs to be repaired by a qualified professional.
Which parts do I need for Remeha fault code b 30?
That depends on the exact cause. In the Remeha parts overview at Instalpunt you will find the current price and stock for each part.
Can I fix fault code b 30 myself?
You can reset the appliance and check things like the water pressure or settings yourself. Work on gas-carrying parts must be left to a certified gas engineer.
All Remeha boiler faults and codes at a glance →