Ferroli fault code F37
Fault code F37 on a Ferroli boiler (including MegaDens 3 122 / 222 / 322 and MegaDens 4 126 / 226 / 326) means: Water pressure of the central heating system is too low. 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 F37 on a Ferroli boiler indicates: Water pressure of the central heating system is too low.
Applies to
Ferroli MegaDens 3 122 / 222 / 322, MegaDens 4 126 / 226 / 326, MegaDens 4SHR 126, MegaDens 5 131 / 231 / 331, -.
Fault code F37 on other Ferroli series
The same code does not mean the same thing on every series. Check the rating plate to see which series you have:
- F37 on BlueSense 4, BlueSense 5, 12/22/32: Domestic hot water temperature measurement error.
Matching parts
Ferroli parts are available from Instalpunt; shipping to EU countries from €17.95 (€24.95 for more distant countries), usually 3–5 working days.
This message does not point directly to one faulty part. These are the parts that most often fit this appliance:
- Ferroli split pin automatic air vent pump Megadens/Domina € 5.89
- Ferroli inspection hatch gasket 27C € 9.81
- Ferroli holder glow plug/sight glass 3286150 € 9.81
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 Ferroli boiler fault code F37 mean?
Water pressure of the central heating system is too low.
How do I fix fault code F37 on a Ferroli 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 Ferroli fault code F37?
That depends on the exact cause. In the Ferroli parts overview at Instalpunt you will find the current price and stock for each part.
Can I fix fault code F37 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 Ferroli boiler faults and codes at a glance →