- Boilers
- Gas boiler
61
Immergas 61 on a gas boiler: air detected in the circulator
Risk level
Medium
Proceed carefully and stop if the check is unclear.
Urgency
Medium
Quick answer
Error 61 on Immergas Victrix Omnia V2 and Victrix Superior 26-35 boilers means air is detected in the circulation pump, stopping the circulator. Check on the gauge that system pressure is between 1 and 1.2 bar; once the pump and circuit are bled, the boiler restarts automatically without a reset.
Safety first
Stop and check this first
- Never open the boiler casing or tamper with internal bleed valves yourself: Immergas states that users must restrict actions to external controls and call an authorized service company if the fault persists.
- If you smell gas or burning, close the main gas shut-off valve, open doors and windows, do not operate electrical switches or plugs, and call an Authorized Technical Assistance Centre.
Safe checks you can perform
- Check system pressure on the boiler pressure gauge
- Verify that radiator valves in the heating circuit are open
- Bleed the circulator and condensing module and check expansion vessel
Leave these tasks to a qualified professional
- Do not attempt this professional task: Bleed the circulator, heating circuit and condensing module
- Do not attempt this professional task: Check system pressure (1 to 1.2 bar) and expansion vessel pre-charge (1.0 bar)
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Bleed the circulator, heating circuit and condensing module
What they doThe technician bleeds air from the circulator and heating circuit, confirms the automatic air vent cap is open, and opens the manual air vent on the condensing module to purge trapped air before closing it again.
They must show youthe open automatic air vent cap, the closed manual bleed valve after purging, and the display clear of error 61.
In writingcode 61, the bleeding carried out on the circulator and condensing module, and the service date.
Check system pressure (1 to 1.2 bar) and expansion vessel pre-charge (1.0 bar)
What they doThe technician verifies that cold system pressure is set between 1 and 1.2 bar, checks that the expansion vessel pre-charge equals 1.0 bar, and confirms pump speed and flow rate in the information menu (parameters d 1.2 and d 1.4).
They must show youthe pressure gauge reading between 1 and 1.2 bar and the live pump flow reading in the information menu.
In writingthe system pressure in bar, the expansion vessel pre-charge pressure and confirmation that the boiler restarted normally.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Check system pressure on the boiler pressure gauge
- Who:
- you.
- How:
- look at the boiler pressure gauge (item 18 on the Victrix Omnia V2 panel) with the heating system cold and check whether the needle sits between 1 and 1.2 bar as Immergas specifies.
- Result that matters:
- confirming the heating circuit has the water pressure required to vent air pockets.
- If pressure is below 1 bar:
- top up the system until the gauge reads between 1 and 1.2 bar following your model's filling instructions, then close the filling valve.
- If pressure is already between 1 and 1.2 bar:
- do not add water and move on to checking the radiator valves.
- Evidence to keep:
- a photo of code 61 on the display and the bar reading on the boiler pressure gauge.
Evidence: Immergas Victrix Omnia V2, instrucciones y advertencias para instalador, usuario y encargado de mantenimiento (1.047702SPA) · Immergas Victrix Superior 26-35, instrucciones y advertencias para instalador, usuario y encargado de mantenimiento (1.047096SPA)
Verify that radiator valves in the heating circuit are open
- Who:
- you.
- How:
- check that the radiator valves across the heating system are not closed and listen for gurgling air noises when the boiler attempts to circulate water.
- Result that matters:
- ensuring unrestricted water flow and checking whether code 61 clears on its own.
- If valves were shut and opening them allows trapped air to clear and normal conditions to return:
- the boiler restarts automatically without pressing Reset.
- If all radiator valves are open but code 61 remains on the display:
- switch the appliance off and contact an Authorized Technical Assistance Centre to bleed the boiler.
- Evidence to keep:
- whether gurgling noises were audible in the boiler or radiators before error 61 appeared.
Evidence: Immergas Victrix Omnia V2, instrucciones y advertencias para instalador, usuario y encargado de mantenimiento (1.047702SPA) · Immergas Victrix Superior 26-35, instrucciones y advertencias para instalador, usuario y encargado de mantenimiento (1.047096SPA)
Bleed the circulator and condensing module and check expansion vessel
- Who:
- qualified technician from an authorized company or Immergas Technical Assistance Centre.
- How:
- bleed the circulator and heating circuit, check that the automatic air vent cap opens properly, use the manual air vent to bleed air from the condensing module (closing the manual vent afterward), and verify the expansion vessel pre-charge is 1.0 bar.
- Result that matters:
- removing all trapped air from pump M1 and the primary heat exchanger so the boiler resumes normal operation.
- If air is vented and normal circulation returns:
- the boiler starts up again automatically without requiring a manual reset.
- If water still does not circulate after bleeding:
- the technician checks whether the UPM3 pump rotor is seized or has an electrical fault.
- Evidence to keep:
- a service record showing final system pressure between 1 and 1.2 bar, expansion vessel pre-charge and pump flow in parameter d 1.4.
Opening the boiler casing to operate the manual bleed valve on the condensing module or service the pump is prohibited to users and reserved for an authorized Immergas technician.
Evidence: Immergas Victrix Omnia V2, instrucciones y advertencias para instalador, usuario y encargado de mantenimiento (1.047702SPA) · Immergas Victrix Superior 26-35, instrucciones y advertencias para instalador, usuario y encargado de mantenimiento (1.047096SPA)
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Boilers
- Brand
- Immergas
- Product type
- Gas boiler
Known code variants
- 61
- E 61
- E61
- error 61 caldera Immergas
- Immergas 61
- Immergas boiler error 61
- Immergas E61
- Victrix Omnia 61
- Victrix Superior 61
What it means
In the user, installer and maintenance manuals for the Immergas Victrix Omnia V2 and Victrix Superior 26-35 condensing boilers, error code 61 indicates air in the circulator: air is detected inside circulation pump M1 and the pump stops running. The official troubleshooting table instructs bleeding the circulator and the heating circuit; once normal conditions are restored, the boiler starts again automatically without needing a reset. Seeing code 61 on the display does not by itself prove the circulation pump is defective, since trapped air pockets or a closed air vent cap trigger the same protective stop.
Warnings and stop conditions
- Highsource verified
Never open the boiler casing or tamper with internal bleed valves yourself: Immergas states that users must restrict actions to external controls and call an authorized service company if the fault persists.
Evidence: Immergas Victrix Omnia V2, instrucciones y advertencias para instalador, usuario y encargado de mantenimiento (1.047702SPA) · Immergas Victrix Superior 26-35, instrucciones y advertencias para instalador, usuario y encargado de mantenimiento (1.047096SPA)
- Highsource verified
If you smell gas or burning, close the main gas shut-off valve, open doors and windows, do not operate electrical switches or plugs, and call an Authorized Technical Assistance Centre.
Evidence: Immergas Victrix Omnia V2, instrucciones y advertencias para instalador, usuario y encargado de mantenimiento (1.047702SPA)
Symptoms and causes
Probable causes · in order
- Air trapped inside the circulation pump and heating circuitCommon
Immergas's fault table explains that error 61 occurs when air is detected inside the boiler circulator, preventing the pump from moving water.
Evidence: Immergas Victrix Omnia V2, instrucciones y advertencias para instalador, usuario y encargado de mantenimiento (1.047702SPA) · Immergas Victrix Superior 26-35, instrucciones y advertencias para instalador, usuario y encargado de mantenimiento (1.047096SPA)
- Closed automatic air vent cap or air in the condensing moduleCommon
In its maintenance troubleshooting table, Immergas links air in the system to an automatic air vent cap that does not open properly or air trapped inside the condensing module.
Evidence: Immergas Victrix Omnia V2, instrucciones y advertencias para instalador, usuario y encargado de mantenimiento (1.047702SPA)
- System water pressure outside 1 to 1.2 bar or expansion vessel issuePossible
Immergas notes that system pressure outside the 1 to 1.2 bar range or an expansion vessel pre-charge different from 1.0 bar promotes air pockets in the primary circuit.
Evidence: Immergas Victrix Omnia V2, instrucciones y advertencias para instalador, usuario y encargado de mantenimiento (1.047702SPA) · Immergas Victrix Superior 26-35, instrucciones y advertencias para instalador, usuario y encargado de mantenimiento (1.047096SPA)
Virtual technician
Does 61 still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
Immergas (Immerspagna) · 2026 · manual
- 2
Immergas (Immerspagna) · 2026 · manual
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