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Brotje Energy Easy 24 CTE Gas Boiler: Constant E06 Error and Hot Water Heating Issues

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  • #1 16873608
    easyshare
    Level 10  
    Posts: 30
    Rate: 22
    Hello,

    For almost two years now, I have had the Brotje Energy Easy 24 CTE gas boiler. Some time ago, when using the domestic water heating circuit, the flame went out (you could hear a "tick"), the display showed E06 and then the flame fired again, the error disappeared from the display. Sometimes it happened once, sometimes two or three times in a row.

    However, for two weeks, the problem has worsened. Error E06 appears on the display all the time, even before I turn on hot water. This completely blocks the heating of the water.

    What could cause the E06 error?
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  • #2 16873751
    diodi1
    Level 24  
    Posts: 459
    Help: 70
    Rate: 69
    Hello. Put the water pressure on the system and it should be ok. Regards
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  • #3 16873809
    easyshare
    Level 10  
    Posts: 30
    Rate: 22
    The pressure in the central heating system affects the operation of the domestic hot water system?
  • #4 16874172
    diodi1
    Level 24  
    Posts: 459
    Help: 70
    Rate: 69
    Hello. Yes, it does. greetings
  • #5 16876028
    easyshare
    Level 10  
    Posts: 30
    Rate: 22
    I cannot open the water release valve. It was not moved for a long time.
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  • #6 16876117
    diodi1
    Level 24  
    Posts: 459
    Help: 70
    Rate: 69
    Hello. Put something on with some WD40 preparation, tap the valve only gently and it should be allowed to move, Regards
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  • #7 16877677
    zybie
    Level 30  
    Posts: 1207
    Help: 133
    Rate: 753
    E 06 - DHW sensor damaged, replace it with a new one.
  • #8 16885944
    easyshare
    Level 10  
    Posts: 30
    Rate: 22
    There is something wrong with my stove at all. It's constantly getting air in. I tried several times to bleed all radiators, including the bathroom radiator located at the highest point of the installation. The furnace works in a single-level apartment in a block of flats.

    When the room controller starts the stove, you can always hear air bubbles crackling first in the stove and then in the radiators, from the one closest to the stove to the farthest one.
  • #9 16886546
    zybie
    Level 30  
    Posts: 1207
    Help: 133
    Rate: 753
    There, where you have the controller, turn the heaters to max.
  • #10 16886689
    easyshare
    Level 10  
    Posts: 30
    Rate: 22
    I have exactly that position.

    In the room where the room regulator is installed, all radiators are turned to the maximum value (3 radiators in total). In other rooms, I adjust the temperature with the heads on the radiators. The bathroom is open to max.

    Each attempt to bleed air ends with a leak of water from each radiator. However, after switching on the stove, you can hear "gurgling, pouring over, etc."

    There are no leaks in the installation. The pressure does not drop. For a year now, I haven't added water to the installation.
  • #11 16896403
    easyshare
    Level 10  
    Posts: 30
    Rate: 22
    I added water to the system. There is 1.5 bar "cold". When the stove is switched on, it rises to approx. 1.7 bar. The problem with air in the installation has ceased.

    Will I be able to replace the DHW sensor myself or call a service technician? How much does such a sensor cost? What repair costs?
  • #12 17188122
    rutec82
    Level 1  
    Posts: 1
    Rate: 5
    Replacing the sensor with it, about PLN 100, you can also handle it, you need to drain the water from the boiler and you need to have this sensor.
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Topic summary

✨ The Brotje Energy Easy 24 CTE gas boiler is experiencing a persistent E06 error, which has escalated from intermittent occurrences during hot water heating to a constant display of the error, preventing water heating altogether. Possible causes discussed include low water pressure in the heating system, which can affect domestic hot water operation, and a damaged domestic hot water (DHW) sensor that may need replacement. Users suggested checking and adjusting the water pressure, and if necessary, using WD40 to free a stuck water release valve. The cost for replacing the DHW sensor is estimated at around PLN 100, and it can be a DIY task if the user is comfortable draining the boiler and replacing the sensor.
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FAQ

TL;DR: Fixing a Brotje Energy Easy 24 CTE E06 issue often centers on the DHW sensor; replacement runs about PLN 100, and “you can also handle it.” [Elektroda, rutec82, post #17188122]

Why it matters: This FAQ helps owners quickly diagnose E06 and hot-water faults, cut downtime, and decide between DIY and service.

Quick Facts

What does the E06 error mean on a Brotje Energy Easy 24 CTE?

E06 indicates a defective DHW (domestic hot water) sensor. The boiler blocks hot-water heating until you replace the sensor. “E 06 - DHW sensor damaged, replace it with a new one.” [Elektroda, zybie, post #16877677]

Can low central-heating (CH) pressure cause hot water errors like E06?

Yes. Users report CH pressure influences DHW behavior and error states. Restore proper pressure before deeper diagnostics. This simple step can clear repeated faults and unstable operation. [Elektroda, diodi1, post #16874172]

How much does a DHW sensor cost, and can I replace it myself?

Expect about PLN 100 for the sensor. You can DIY the swap if you’re comfortable. Drain the boiler first, then replace the part. “You can also handle it.” [Elektroda, rutec82, post #17188122]

Why do I hear gurgling and bubbling before the radiators heat up?

Air in the system causes crackling and gurgling. After increasing cold pressure to 1.5 bar (rising ~1.7 bar in operation), the noises stopped in the reported case. [Elektroda, easyshare, post #16896403]

How do I free a stuck fill or drain valve on the boiler?

Apply WD‑40 to the valve spindle and tap it gently to avoid damage. Do not force the handle. This approach restored movement for a stuck valve. [Elektroda, diodi1, post #16876117]

What pressure should I see on the gauge when cold and when heating?

A reported working example is 1.5 bar when cold and about 1.7 bar when the boiler fires. Noise from air ceased after reaching these values. [Elektroda, easyshare, post #16896403]

Does radiator valve position in the room with the controller matter?

Yes. Open the radiators fully in the room with the main controller. This helps stable temperature sensing and boiler cycling. [Elektroda, zybie, post #16886546]

I bled the radiators, but water leaks and noises persist—what gives?

Leaks during bleeding can occur, yet air noises may persist if pressure remains low. After topping up, users reported the gurgling stopped without further leaks. [Elektroda, easyshare, post #16886689]

How do I replace the DHW sensor (3‑step how‑to)?

  1. Power off the boiler and drain water from the unit.
  2. Remove the faulty DHW sensor and fit the new one.
  3. Refill, bleed, and restore pressure, then test hot water. [Elektroda, rutec82, post #17188122]

Will topping up system pressure resolve repeated ignition ticks and flame dropouts?

Restoring pressure helped eliminate air and stabilize operation in the shared case. After topping to 1.5 bar cold, the system ran without gurgling. [Elektroda, easyshare, post #16896403]

What’s the fastest check before calling service for E06?

Verify system pressure first, as CH pressure affects DHW. If E06 persists, plan for DHW sensor replacement. This sequence saves time and cost. [Elektroda, diodi1, post #16874172]

Any edge cases I should know about when replacing the sensor?

A stuck valve can delay the job. Use penetrating oil and light taps to free it before draining. Avoid overtightening afterward. [Elektroda, diodi1, post #16876117]

After increasing pressure, my air noises stopped—does that confirm the fix?

It indicates pressure and air were the main issues. In the cited case, noises ceased after reaching 1.5 bar cold, 1.7 bar hot. [Elektroda, easyshare, post #16896403]

Why does E06 appear even before opening the hot-water tap?

A failed DHW sensor can flag E06 at idle. The boiler blocks DHW heating until the defective sensor is replaced. [Elektroda, zybie, post #16877677]

What’s the typical total outlay to clear E06 if I DIY?

Plan for about PLN 100 for the sensor. If the valve is stuck, add minimal cost for WD‑40. Labor is your time. [Elektroda, rutec82, post #17188122]
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