Ferroli fault code A2
Fault code A2 on a Ferroli boiler (including HR Econpact and HR Econpact 3HP) means: High-limit thermostat in operation. 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 A2 on a Ferroli boiler indicates: High-limit thermostat in operation.
Applies to
Ferroli HR Econpact, HR Econpact 3HP, HR Econpact 4, HR Econpact 4HP, HR Econpact 5, HR Econpact 50A, HR Econpact 50B, HR Econpact A (135A), -, 125C, 127A (27A), 127C (27C), 135A (35A), 135C (35C), 225C, 235C, HR Econpact 3.
Fault code A2 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:
- A2 on MegaDens 3 122 / 222 / 322, MegaDens 4 126 / 226 / 326, MegaDens 4SHR 126, MegaDens 5 131 / 231 / 331, MegaDens 5SHR 131, -: False flame signal.
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.
For fault code A2, the part involved is usually in the category: thermostat.
This message does not point directly to one faulty part. These are the parts that most often fit this appliance:
- Ferroli ionisation pin 27C € 32.67
- Ferroli automatic air vent 3/8" + reducer 3/8-1/2" € 33.98
- Ferroli NTC sensor 27C click 22 mm 10kohm € 45.74
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 A2 mean?
High-limit thermostat in operation.
How do I fix fault code A2 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 A2?
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 A2 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 →